Warhammer 40,000: Boltgun

Off Target

1. Secret 1 of 1: Assault Doctrine (Reliable). Pick up the Boltgun in the shrine room, then drop down the long shaft at its far end. Kill the cultists at the bottom, press the button and push on through the next two rooms. In the room with the flags and the big blue window, stop in the doorway before the purge starts and go to the corner on your right, beside the window. The wall section with the Adeptus Mechanicus symbol opens when you interact with it, and the relic inside boosts your chainsword. Watch out: Once you step fully into the room the purge begins, so go for the corner on your right straight away.

Mountain Batteries

1. Secret 1 of 6: Full Contempt (Reliable). After you use the red key, climb to the top floor of the building by the door and jump out of the window that overlooks the cultist yard. Clear the cultists, then press the button beside the tall wall gate on your right. Fight the cultists and Chaos Space Marines inside; the relic sits at the back of that area, near the cliff edge, and also in view from the side door on the right.
2. Secret 2 of 6: Munitions Boon (Reliable). Reach the two giant cannons and take the ramp on the left. Clear the heretics on top, then ignore the building ahead and the path to the left. Jump from the rock on your left onto the rock on your right. Across the gap is a platform with yellow paint along its edge; jump onto it and take the relic from the middle. Watch out: A missed jump on the snowy ledges means a long walk back, so take the jumps with a clean run-up.
3. Secret 3 of 6: Machine Spirit (Reliable). Go back down to the cannon area and find the tall building with the green-lit door panel next to it. Press the panel to open the door, then climb to the topmost room. The relic is in that room and upgrades the weapon you hold when you take it. Watch out: Equip the weapon you want upgraded before you take it.
4. Secret 4 of 6: Vortex Grenade (Reliable). Stay in the room with the Machine Spirit and face the wall straight ahead. The mossy green section of wall is a hidden door: interact with it and take the grenade behind it.
5. Secret 5 of 6: Aura of Doom (Reliable). Leave the building and cross to the structure that stands between the two cannons, fighting through the cultists and Chaos Space Marines. Either side path works. Shoot out the small glowing red devices you pass on the way. The relic sits inside the structure, guarded by a few enemies.
6. Secret 6 of 6: Kraken Boltgun Magazine (Check in game). Follow the level on to the muddy stretch full of plague toads. Climb the platforms on the right, killing whatever blocks them. From the top, jump to the tall stone pillar across the gap; the magazine lies on top. Take a running jump.

Sector Imperialis

1. Secret 1 of 7: Munitions Boon (Reliable). From the start, walk to the red door, keep going right to the end where a building with a green banner stands, and round its corner. Follow the rubble-strewn path to its end; a short side path on the right leads straight to the relic, behind the dead end where two pink horrors wait.
2. Secret 2 of 7: Full Contempt (Reliable). Go into the green-banner building and up to the top floor, where a Shotgun sits in the middle of the room. Take it, beat the blue horrors that spawn, and go through the opening on the right to the red key. The relic floats on top of the statue's head opposite; jump and climb up onto the head to reach it.
3. Secret 3 of 7: Kraken Boltgun Magazine (Reliable). After the red door, you reach an area with an Adeptus Mechanicus symbol and two paths. Take the left path to the fortified building and clear it. Jump into the opening on its left side and follow either corridor to the back to find the magazine.
4. Secret 4 of 7: Machine Spirit (Reliable). Take the opposite path to the one above. It ends at an identical building: clear it, jump into the opening and follow either way round to the back, where the relic lies. Watch out: Equip the weapon you want upgraded before you take it.
5. Secret 5 of 7: Vortex Grenade (Reliable). Use the purple key, then ride the elevator down into the arena where a purge starts. Jump across to the staircase opposite the elevator and climb it. At the top, the smoother wall section on your right is a hidden door; interact with it to reveal a small room with the grenade.
6. Secret 6 of 7: Aura of Doom (Reliable). Opposite the hidden door, you can see a broken bridge below. Drop down onto it and take the relic from the middle of the ruined span.
7. Secret 7 of 7: Dragonfire Boltgun Magazine (Reliable). From the broken bridge, look for the building that has no obvious way in. Jump from the bridge to the ledge sticking out of that building and edge around it to the opening. Inside, the magazine lies behind a column.

Silent Martyrs

1. Secret 1 of 6: Machine Spirit (Reliable). Take the red key from the upper room of the tall purple building opposite the start (Nurglings burst out when you open the door). Drop down from the bridge, and look under the bridge directly below that room for a doorway that is now open. Go in and follow the tunnel down to the relic. Watch out: Equip the weapon you want upgraded before you take it.
2. Secret 2 of 6: Munitions Boon (Reliable). Leave the key room and turn left outside toward the purple door. Just left of the door is a pile of sandbags, braziers and a crate. Look closely at the crate: it has an opening, and the relic is inside.
3. Secret 3 of 6: Vortex Grenade (Reliable). Use the purple key on the purple door. Straight across from that door is a staircase leading down to a newly opened doorway; the grenade is in the room at the bottom.
4. Secret 4 of 6: Dragonfire Boltgun Magazine (Reliable). In the statue arena where a purge begins, head toward the building with the round window. Climb to the balcony with sandbags, barricades and crates. An opening in the crate on the left holds the magazine.
5. Secret 5 of 6: Aura of Doom (Reliable). Take the yellow key and go through the yellow door into the open arena with a huge statue between two rows of columns (a purge starts). The relic lies on the ruined bridge under the statue.
6. Secret 6 of 6: Kraken Boltgun Magazine (Reliable). From the ruined bridge, take the stairs on your left down to the bottom floor. Two doorways in the corner lead down short stairs to a room with crates and ammo; the magazine is in the centre. A descent beside the mission's exit door also leads down to it.

Martyrs Crossing

1. Secret 1 of 7: Machine Spirit (Reliable). Head straight on from the start to the area with two big pillars and a bridge on the right. Go left to the snowy cliff edge among the pillars. It looks like only a drop at first, but round the corner on your left is an open crate holding the relic. Watch out: Equip the weapon you want upgraded before you take it.
2. Secret 2 of 7: Assault Doctrine (Reliable). Go through the button door that has a plasma gun and plasma ammo on its right. In the cluttered area beyond, between the metal fences, there are two open crates ahead; the relic is in the left one.
3. Secret 3 of 7: Vengeance Boltgun Magazine (Reliable). At the far end of the fenced area, the button door on the left leads to the red key. Take it, then open the red door on the right side of the fenced area, opposite that button door. The magazine lies straight ahead in the little room.
4. Secret 4 of 7: Vortex Grenade (Reliable). After riding the elevator to the room with cultists and a Chaos banner, continue to the corner corridor that leads outside and stop there. The blank wall on your left is a hidden door (the corridor has red windows); interact with it to open it and take the grenade.
5. Secret 5 of 7: Infinite Ammo (Reliable). In the outdoor arena with a bridge crossing it, walk to the middle of the bridge and take the Heavy Bolter. A purge starts and Screamers of Tzeentch attack. When it ends, a door opens left of the bolter spot; go into the alcove for the relic. Watch out: The alcove door only opens once the wave is cleared.
6. Secret 6 of 7: Munitions Boon (Reliable). Ride the elevators down to the crate-filled room with a doorway on the left to the outside. Do not turn left or go down the ramp; go straight and look in the open crate ahead.
7. Secret 7 of 7: Kraken Boltgun Magazine (Reliable). In the final area with the hanging gantries (three walkways), stay on the middle one. Under the overpass between two big supports, the magazine lies on the central gantry.

Venerable Bastion

1. Secret 1 of 7: Machine Spirit (Reliable). After the first fight, stay on the upper level instead of going down. Along the snowy edge on the left, under the overhead pipes, there is an open crate across a small gap. Jump over and take the relic. Watch out: Equip the weapon you want upgraded before you take it.
2. Secret 2 of 7: Munitions Boon (Reliable). Reach the huge outdoor area with crates and a drop-down below. Do not drop down: look ahead for the edge with yellow paint on it, leap across and climb onto it. The relic is in front of an Adeptus Mechanicus banner. Watch out: Dropping down into the crate-filled area skips this secret.
3. Secret 3 of 7: Vengeance Boltgun Magazine (Reliable). Shortly before the red key, a crate stands beside a purple wall. Use the crate to climb up to the ledge, then go to the right side of the ledge to find the magazine.
4. Secret 4 of 7: Vortex Grenade (Reliable). Cross the bridge toward the wall of spiked columns but do not carry on. Hop onto the short wall on your right, look round the corner to the snowy ledge across, leap onto it and climb up. A secluded room on the left, beside Adeptus Mechanicus banners, holds the grenade. This is the stretch on the way to the yellow key where you climb the stones into a building instead of walking into the nearest one.
5. Secret 5 of 7: Full Contempt (Reliable). When you take the yellow key, turn right and jump onto the slanted roof. Cross it, drop down, and leap onto the bridge below; the relic is right beside you on landing.
6. Secret 6 of 7: Kraken Boltgun Magazine (Reliable). After the yellow door, go round the corner to the left into a small room with a barrel and an elevator. The blank wall next to the barrel is a concealed panel. Use it, then step through for the magazine.
7. Secret 7 of 7: Aura of Doom (Reliable). Leave the last elevator and go left, then follow the yellow signs. Climb onto the first yellow-painted ledge, then up a crate to a second yellow-painted ledge. Look left: past some barricades, a crate at the back is open and holds the relic.

Forbidden Knowledge

1. Secret 1 of 6: Kraken Boltgun Magazine (Reliable). In the huge starting room, go straight, through the crate and down the ramp, then down the next ramp ahead. Past the stairs into a room defiled by Chaos is a stack of crates; approach from the right and check the one on the ground nearest the wall, which is open.
2. Secret 2 of 6: Machine Spirit (Check in game). Reach the room with the Tzeentch banner and the red key. Look left of the ordinary-looking clutter: an open crate stands there. Step inside to take the relic. Watch out: Equip the weapon you want upgraded before you take it.
3. Secret 3 of 6: Vortex Grenade (Reliable). Take the large elevator up. In the cluttered space at the top, walk to the open crate straight ahead, open at both ends. Go through it into a hidden nook, where a second open crate holds the grenade.
4. Secret 4 of 6: Full Contempt (Reliable). A little further on, at the Tzeentch banner, ignore the button door to the left of it. The crates on the right include a top one that is open; climb into it. The relic is inside. It is also at the end of the corridor with stacked crates on both sides, in the upper one on the right.
5. Secret 5 of 6: Munitions Boon (Reliable). Beyond the crate blockade, go through the crate in the middle that is open at both ends and look left for a ramp. At the top, face the wall with the barrel: it is a hidden door. Interact with it to find the relic in the small room.
6. Secret 6 of 6: Assault Doctrine (Reliable). In the last area before the exit, go to the right of the entrance and drop through the hole in the floor to a library. Do not go deeper in; turn left and round the corner to the bookshelf with an interaction prompt. It slides aside, exposing an alcove with the relic.

Sanctum Magistratum

1. Secret 1 of 6: Munitions Boon (Reliable). After the first teleport and the fight that follows, look at the area fouled by Chaos. A staircase on the right leads up; do not climb it. Follow the lower path winding to the right, to its end, and check behind the ramp for the relic.
2. Secret 2 of 6: Vortex Grenade (Reliable). Climb the tall tower with the dark pillar inside to the first-floor doorway into the Heavy Bolter room. Of the two outside doorways, ignore the right one and take the left to the bridge running right. Follow it to the end for the grenade.
3. Secret 3 of 6: Machine Spirit (Reliable). Take the ramp to the very top of the tower and walk along the balcony to the right. Drop down onto the separate building below; the relic is inside, surrounded by gore. Candles mark the ledge you drop from. Watch out: Equip the weapon you want upgraded before you take it.
4. Secret 4 of 6: Dragonfire Boltgun Magazine (Reliable). Go through the Warp portal into the Chaos-corrupted room and look at the smooth empty wall on the right. Interact with it and it slides open to reveal the magazine.
5. Secret 5 of 6: Kraken Boltgun Magazine (Check in game). In the portal maze, go straight on to the fork with two portals and take the right one. Take each next portal across the bridges, until the bridge with a portal ahead that you do not enter. Go to its left edge near the two huge columns, climb onto the wall and drop onto the underside of the bridge below. Walk forward to the arch with a Chaos symbol and jump on top of it; the magazine is there. Watch out: Do not enter the last portal on the bridge; stay on the left edge instead.
6. Secret 6 of 6: Aura of Doom (Reliable). In the final area, with the large Chaos mass in the middle, drop to the floor on your right and step through the Warp portal. Follow the rising walkway to the platform, ignore the next portal, and leap to the floating structure on your right where the relic lies.

Corrupted Canyon

1. Secret 1 of 6: Dragonfire Boltgun Magazine (Reliable). Walk down the canyon to the spot with the large bones. Look right: a barricade stands at the top of a slope. Climb up to it and enter the small cave beside it; the magazine lies inside. It is on the right-hand sandy slope shortly after the spawn.
2. Secret 2 of 6: Machine Spirit (Unconfirmed). Go on through the canyon to a small cave entrance. Inside, look left for a hole in the floor and drop down. Continue to a big chasm and take the path down to the right, then the path that climbs. At the top jump to the middle platform, then the platform on the right. After landing, cross the stone bridge and enter the cave on the left for the relic.
3. Secret 3 of 6: Kraken Boltgun Magazine (Reliable). Pick up the red key. Look to its right, jump across the gap, keep going and turn left. The magazine is just there, on the right side near the key.
4. Secret 4 of 6: Vortex Grenade (Reliable). Open the gate with the red key by using the console, then jump to the platform just in front of the door and turn round. Drop down to the ledge on the left, a little higher than the walkway, enter the cave and carry on until you exit on the far side. From there, hop across the platforms jutting from the wall into the cavern. The grenade is inside.
5. Secret 5 of 6: Munitions Boon (Reliable). After the grenade, drop down and continue as normal. Keep to the left wall until you find a cavern; follow it through and jump the gap to the next platform, then into another cavern with an elevator. Before riding it, look up the wall with the writing, to the left of the elevator console: there is a hole. Jump into it while the elevator rises to reach the relic. Watch out: You have to leave the elevator part-way up; riding it to the top without stopping skips this.
6. Secret 6 of 6: Aura of Doom (Reliable). Go back to the elevator and ride it all the way up. When you arrive, jump down into a room of enemies and clear it. Look back at the edge you jumped from: below the walkway on the left, there is a cavern under the bridge. The relic is in there.

Canyon Magrails

1. Secret 1 of 7: Vengeance Boltgun Magazine (Check in game). Right at the start, go through to the rock arch with a flag, pass through it and use the next arching rock to carry on. Jump onto the arch and follow it down into a chasm, where a demon spawns; the magazine is there.
2. Secret 2 of 7: Munitions Boon (Reliable). After the first moving platform, go down through the building. Beyond the Chaos Marine you meet on the way down, look right: a corner holds the relic. Jump to it.
3. Secret 3 of 7: Vortex Grenade (Reliable). From the previous spot, jump down the hole beside it and walk to the end of the hallway below. Use the end wall, which is a concealed panel; it slides down and shows the grenade.
4. Secret 4 of 7: Kraken Boltgun Magazine (Reliable). Take the next moving platform to the door beyond and kill the cultists by the lift. On the lift, a platform sits in the middle of its path; jump to it while rising. The magazine lies on it, on the first floor in the corner. Watch out: You have to jump off the lift on its way up; riding it to the top without stopping skips this.
5. Secret 5 of 7: Dragonfire Boltgun Magazine (Reliable). After the chaos marines in the hallway, board the long, slow platform on its rail. Watch the left: the nearest platform on that side is the target. Jump over and follow its path to the magazine, then jump straight back onto the moving platform. Watch out: Jump back onto the rail platform immediately or you will be left behind.
6. Secret 6 of 7: Machine Spirit (Reliable). Back on the rail platform, watch the right this time. Near the end of the line a small platform and room are within jumping range; use the stone ledge on the right to drop into the open building. The relic is inside. Watch out: Do this in the same ride; the rail platform does not wait for you.
7. Secret 7 of 7: Aura of Doom (Reliable). After the yellow key and the next fight, jump the gap to solid ground and drop down the hole, killing the demons on the way. Open the door, defeat the mini-boss, and enter the large purge area. The relic stands on a stone pillar in the middle; reach it using the building next to it, which is also the mission's end.

Tunnels Beneath

1. Secret 1 of 6: Kraken Boltgun Magazine (Reliable). From the start, go left to the big cylinder with the Mechanicus logo and go behind it. A small cave glows green there; the magazine is inside, in the back of the little cave.
2. Secret 2 of 6: Vortex Grenade (Reliable). In the area with the chasm and a rock bridge with a gap, stay on the bridge and walk to the broken tip. Look right: there is a barely visible ledge at your height. Take a running jump to it; the grenade is there.
3. Secret 3 of 6: Machine Spirit (Reliable). Look down the chasm from the same place: the Nurglings spawn from a small cave on the opposite side, far below. Jump down to that cave; the relic is inside. You can jump from the grenade ledge or from the bridge across the gap.
4. Secret 4 of 6: Dragonfire Boltgun Magazine (Check in game). Follow the chasm into the hallway full of Nurglings and other enemies, and at the crossroads go left. In the open area, go straight ahead to the rock pillar with a Chaos flag and go behind it to a cave stocked with ammunition. The magazine is at the very back.
5. Secret 5 of 6: Aura of Doom (Reliable). Where a ledge drops into a purge area, turn right. Follow the right wall to an open container; the relic is inside. After you pick up the new weapon and drop down, keep right and it is close to your route forward.
6. Secret 6 of 6: Munitions Boon (Reliable). Stay on the right wall a little further from the previous container, in the area with spare ammo and another container whose opening faces away from you. Go round and inside; the relic is the last secret on this level.

Sanctum Manufactorum

1. Secret 1 of 5: Machine Spirit (Reliable). Go on until you reach the red key. Just left of the room that holds it, go up the ramp at the end to the building on the left, past the building with the key. Enter the building; there is ammo and the relic inside.
2. Secret 2 of 5: Munitions Boon (Reliable). Take the red key and open the red door. Go along the short winding corridor and straight on, truly straight, all the way to the end wall of the maze-like room. The wall is a hidden door: interact with it for the relic.
3. Secret 3 of 5: Vengeance Boltgun Magazine (Reliable). After you pick up the Melta Gun, go through the door beside it into the rocky area. In the darker section that follows, keep to the right wall, going back to the right corner rather than left, past the half cogwheel, to find the magazine.
4. Secret 4 of 5: Vortex Grenade (Reliable). Open the gate at the start of the big bridge. At the beginning of the bridge, go to the left side, look back and down, and sprint-jump onto the ledge there. An opening leads into the area with the grenade.
5. Secret 5 of 5: Aura of Doom (Reliable). In the last arena, where you fight the Lord of Change, look to the right as you enter. The relic stands on a steel structure beside the cogs; use the cogs to climb up and jump across.

Hidden Sins

1. Secret 1 of 7: Machine Spirit (Reliable). From the start, go forward and take the first right. At the crossroads, the red key is to the right; go left instead and look slightly up on the right: the relic is on a ledge. Climb up to it.
2. Secret 2 of 7: Aura of Doom (Reliable). Go back to the start and head left, then left again at the crossroads into the area full of enemies. At the very back, climb the ledge to an open crate; the relic is inside.
3. Secret 3 of 7: Kraken Boltgun Magazine (Reliable). Drop down from the previous spot and go left. Turn right when you can and look right again: an opening in the wall, next to the crates of ammo and healing, has the magazine.
4. Secret 4 of 7: Vortex Grenade (Reliable). Open the red door and go right, up the ramp, then left, watching the right. The door with the different pattern is a hidden wall; walk up to it and interact. The grenade is in the room behind.
5. Secret 5 of 7: Dragonfire Boltgun Magazine (Check in game). In the area with the blue doors there are two mirror-image side rooms below the main doors. From the entrance go right: a bridge leads to a blue door. Take the doorway below and to the right, then walk the long hallway to the magazine at the far end.
6. Secret 6 of 7: Munitions Boon (Check in game). Back at the entrance of the blue-door area, go left this time. A bridge leads to a door; jump down to the doorway below it. The relic is in the room beyond, which copies the one on the right.
7. Secret 7 of 7: Assault Doctrine (Reliable). In the big yellow-key room, where you purge and fight the Lord of Change, go left from the entrance and follow the path up a ramp. Use the bridges toward the centre; on the far side, a doorway on the left, ringed by rocks, leads into a cave high above the room. The relic is inside.

No Truth In Flesh

Point of no return: Finish the mission with all eight secrets collected in one run; re-entering later to pick up leftovers does not count.

1. Secret 1 of 8: Munitions Boon (Reliable). After spawning, go straight to the centre with four passageways, take the left door, and keep going through the left door of the next room. At the skull graffiti with the numerals I and II, turn left where the II points. Fight along the path to a large room and look down to see a green glow: the relic.
2. Secret 2 of 8: Vengeance Boltgun Magazine (Reliable). In the same room as the Munitions Boon, face the underside of the ramp and go right into the other section. Look left: a small crypt holds the magazine. A statue in the corner also has an open compartment here.
3. Secret 3 of 8: Kraken Boltgun Magazine (Reliable). Go back to the skull graffiti and take the other path. At its end is a bunny-hop platform section with enemies; cross it. Turn left into a room full of pillars, go straight to the machine-like object and turn left to a small doorway. Go up the ramp inside but only halfway, then look at the upper corner for a ledge. Climb it to reach the magazine.
4. Secret 4 of 8: Machine Spirit (Reliable). Continue up the ramp from the previous spot, through the hanging platform and along the path past the enemies. At the end of the path, jump down and find a small doorway like the one before. Inside, look up near the ramp and jump to the ledge for the relic.
5. Secret 5 of 8: Infinite Ammo (Check in game). Head back down and go right along the fleshy corridor to a room with a device in the middle. Activate it and ride four portals in a row. After the last, go straight, jump down, take the left passage and climb the ramp to a door the purple key opens. Cross the lava room and take the gold key. Return to the big room, open the right-hand door with it, jump across and use the wall: it hides a passage to the relics.
6. Secret 6 of 8: Aura of Doom (Check in game). The concealed passage from the previous secret ends at both relics, so take the Aura of Doom on the same trip, at the far end beside the Infinite Ammo.
7. Secret 7 of 8: Vortex Grenade (Reliable). Return to the entrance of that hidden door, then go through the arched doorway in the centre of the room and look down: the grenade is directly below you as you leave the gear room. Watch out: Move quickly once you have it.
8. Secret 8 of 8: Dragonfire Boltgun Magazine (Check in game). From the grenade, go straight to the end of the hallway, turn left and then right up the ramp. Climb the pile of crates to reach the magazine.

The Deep Vault

1. Secret 1 of 6: Kraken Boltgun Magazine (Reliable). After taking the red key and opening the first red door, drop down and head left until you see the portal. Before going through, look right: the magazine is there, in the dark slimy room.
2. Secret 2 of 6: Dragonfire Boltgun Magazine (Reliable). At the blue key, look just to its left: containers are stacked there. Jump onto them; the magazine is on top. You can also see it from the way up to the purple key, down on the left on the stacked crates. Watch out: Use up any special magazine you are holding before you take this one.
3. Secret 3 of 6: Vortex Grenade (Reliable). After the blue key and another red gate, follow the path until a Chaos flag appears, then go left. Go forward, left again, and look for the mess of containers; there are a lot of stacked crates and a suit of armour on the left. Climb the pile and take the grenade from the top.
4. Secret 4 of 6: Munitions Boon (Reliable). After the blue gate you enter an open area full of Chaos Marines. Head into the building up the ramp, grab the ledge on the floor above and pull yourself onto the roof, then walk round the centre to find the relic.
5. Secret 5 of 6: Aura of Doom (Reliable). In the large yellow area where you fight the Ambulls, look on the right side for a hole in the wall; a cave there holds the relic.
6. Secret 6 of 6: Machine Spirit (Reliable). Return to the room where you took the portal to the red key. The room to its left only opens once you have both the red and blue keys, and it is full of Space Marine armour. Walk to the back wall and use it, since it conceals a passage. Follow the passage to its end for the relic.

Heresy Lurks

1. Secret 1 of 6: Vengeance Boltgun Magazine (Reliable). At the laser room, where the beams sweep up and down, be careful of the enemies on both sides. Cross to the right side and go through the doorway into the narrow hallway where the shooters stand. The magazine is at the very end of that hallway.
2. Secret 2 of 6: Assault Doctrine (Reliable). Leave the hallway and take the ramp up. At the top, enemies fire down at you from a room; the relic sits in plain view in the middle of that room, on the machine.
3. Secret 3 of 6: Machine Spirit (Reliable). In the same room, look at the left side and jump to the ledge where the shooters stood. Use the wall there; it slides open and reveals the relic.
4. Secret 4 of 6: Munitions Boon (Reliable). After the Assault Doctrine room, drop down into the slime hall with Nurgle demons where the ceiling slowly comes down. Run through it quickly, hopping the plague toad. Where the blue key sits, take the right side, then follow the path while watching the left. Get out before the ceiling closes. Watch out: The ceiling crushes you if you linger; save first and move quickly.
5. Secret 5 of 6: Vortex Grenade (Reliable). Where the jump pads are, drop from the first 'castle' to the third. From the pillar's platform, use the pad on the right rather than the left. You land on the platform with the grenade, in a building. It is the right of the two pads on the plateau.
6. Secret 6 of 6: Kraken Boltgun Magazine (Reliable). Keep using the jump pads to the very end of the open area. A ledge to the left, by the pillar, can be jumped onto; the magazine lies on it. It is the last secret of the level and is needed for the next fight.

Smelting Decks

1. Secret 1 of 7: Kraken Boltgun Magazine (Reliable). Walk forward at the start until you see the huge column of falling lava, then look right. A container blocks the way; climb over it and the magazine is inside.
2. Secret 2 of 7: Machine Spirit (Reliable). Keep climbing. When you reach the ramp to the next area, go to its side instead and hop across the metal platforms. Look straight across from the lava column: a door stands open on that side, and the relic is behind it. This is on the second floor, between two lava falls.
3. Secret 3 of 7: Vortex Grenade (Reliable). After you purge the arena, platform up to the top of it until you see the lava pool, and go to its edge. Look down at the platforms marked with yellow paint. A container hangs from chains in the middle; reach it and step inside for the grenade.
4. Secret 4 of 7: Vengeance Boltgun Magazine (Reliable). In the area where you jump onto containers to reach a hole in the ceiling, one container is open. Go to the back of it and interact with the wall; it opens onto the magazine.
5. Secret 5 of 7: Contempt (Reliable). In the next area where you jump onto a container to move on, check inside the container rather than heading for the top. It holds a Contempt pickup that overcharges your Contempt past 200, up to 300.
6. Secret 6 of 7: Munitions Boon (Reliable). In the very tall area you purge, go left from the entrance. A container there holds the relic.
7. Secret 7 of 7: Aura of Doom (Reliable). Stay in the same tall area, but on its second level. Instead of following the ramps up, walk onto the platform that passes through an open container. Come out of it, turn left and left again, then take the ramp to the relic.

Promethium Supply

1. Secret 1 of 5 (Unconfirmed). In the first huge room, jump up on the right: use the pipes to reach a tank, then drop into the opening in the ground. The pickup is in the room below.
2. Secret 2 of 5 (Unconfirmed). Leave that room the only way you can and turn left. Climb to the right again by jumping, follow the route and look to the right: an open crate holds the pickup.
3. Secret 3 of 5 (Unconfirmed). In the next room, find the box with two candles on it, close to the wall. Interact with the wall above the box to open a compartment.
4. Secret 4 of 5 (Unconfirmed). Ride the elevator that reports the machine as broken and let it take you down. Win the fight that follows, then look around the room, where all the doors are now open, for an open crate.
5. Secret 5 of 5: Vortex Grenade (Unconfirmed). After you follow the huge lava river and go up a ramp, find the door on the right with 'Gr.X III' written on the wall in front of it. Interact with the wall on the opposite side from the door to open the compartment holding the grenade.

Galvanic Forgeshrine

1. Secret 1 of 6: Dragonfire Boltgun Magazine (Reliable). When the mission starts, turn round and drop all the way down. Behind a post and under a metal ramp you will find the magazine, next to a stock of heavy ammo.
2. Secret 2 of 6: Full Contempt (Reliable). Climb back up, go straight and then left, and follow the path to the spot where you can drop down. Go left after landing and you will see the relic under another metal ramp. In the room with the two melting pods it is under the ramp that runs down between them.
3. Secret 3 of 6: Vortex Grenade (Reliable). Climb back up and find the metal ramp you can climb. Head straight until you meet a gap in the path and jump across. Follow the line of armour to its end and interact with the wall; the compartment holds the grenade. Stay on the melting-pod side as you climb.
4. Secret 4 of 6: Machine Spirit (Reliable). Turn round and jump down onto a path, go straight and turn left. Carry on straight along a path that heads toward a wall, past the first lava fall, and interact with the wall on your left to open the compartment.
5. Secret 5 of 6: Aura of Doom (Check in game). Bear left, then straight on until you spot a hole, and jump in. Take the key at the bottom and use it at the console to raise the gate. Past it, go left at the fork and use the next console to open another gate. Turn right up the ramp, cross the metal platform and turn right. Open the gate there with your key, take the right-hand path at the next fork, go straight, and leap to the railed metal platform. Turn left: the relic is there.
6. Secret 6 of 6: Munitions Boon (Reliable). From the rail platform, turn left, jump across and go straight on to a blue key. Take it, return to the ramp with the totem (the right fork from earlier) and open the gate with the key. Beyond it a yellow key sits in an open area, and the relic is on a high platform across from it. Press the three switches in order, since each opens the gate to the next, and the third extends a metal ledge. Jump onto it and grab the higher platform. Watch out: You have to hang on to the higher platform as you jump from the ledge, so line up the jump before you leap.

Grand Elevator

1. Secret 1 of 6 (Unconfirmed). In the starting area, stack up on the crates to the left to reach a steel beam. Walk along it into the crate dangling from above.
2. Secret 2 of 6: Vortex Grenade (Unconfirmed). In the huge area where you need three keys, a crate hangs from a crane. Climb the two buildings with stairs around them to get above it, then drop onto the crate and step in carefully for the grenade.
3. Secret 3 of 6 (Unconfirmed). On the way to the next key you enter a room. Go straight, and near the far end look right and jump across to the pickup.
4. Secret 4 of 6 (Unconfirmed). At the area with three locks, two pickups sit inside laser cages. Using the purple key opens one of them, and that gives you the first pickup.
5. Secret 5 of 6 (Unconfirmed). After you take the pickup from the first cage, look down along the wall to find two open crates side by side. The second pickup is in one of them.
6. Secret 6 of 6 (Unconfirmed). Use the yellow key to switch off the second laser cage, which gives you access to the last pickup of the level.

Big Guns Never Tire

1. Secret 1 of 5: Vortex Grenade (Unconfirmed). In the starting area, keep to the left and find the open crate with the grenade inside.
2. Secret 2 of 5 (Unconfirmed). Go up one floor, and before turning right, turn left and interact with the wall to open a compartment.
3. Secret 3 of 5 (Unconfirmed). A little further on, go straight and look for two stacked crates on the right. The pickup is in the open one.
4. Secret 4 of 5 (Unconfirmed). After you open the ceiling in the huge area, two crates hang above. The pickup is in the lower one.
5. Secret 5 of 5 (Unconfirmed). From the lower hanging crate, drop down and head left to another open crate. The last pickup of the level is inside.

Death Is Honour

1. Secret 1 of 6 (Unconfirmed). Before you go through the door, interact with the wall on its left.
2. Secret 2 of 6 (Unconfirmed). In the next room, do not climb the ramp. Interact with the wall on the left of it.
3. Secret 3 of 6 (Unconfirmed). A while after the red key, you cross a bridge and are ambushed from the right. Win the fight, then jump over to the right for a Vortex Grenade and a second pickup in the same place.
4. Secret 4 of 6 (Unconfirmed). Take this second pickup from the same spot on the right, where the ambush came from, on the same visit as the previous secret.
5. Secret 5 of 6 (Unconfirmed). In the graveyard-like area, keep to the left wall and follow it to the corner. A pickup lies below a tombstone.
6. Secret 6 of 6 (Unconfirmed). Facing the exit, turn right and walk to the corner. The pickup is behind the building there.

Furnace of Damnation

1. Secret 1 of 5 (Unconfirmed). In the room you reach after a while, just before the plasma rifle, jump to the left and interact with the wall.
2. Secret 2 of 5 (Unconfirmed). On the way to the red key, in the hall of crushers, look along the middle line of crushers, ahead of you; the pickup is there and hard to miss.
3. Secret 3 of 5 (Unconfirmed). After climbing the slimy ramps with slime pillars in the middle, you reach a huge room. Go left and up the stairs; an opening holds the pickup.
4. Secret 4 of 5 (Unconfirmed). In the big room after the door opens, take the jump pad and notice a pickup halfway up. Let yourself fall onto it.
5. Secret 5 of 5 (Unconfirmed). From the jump-pad room, go to the opposite side of the pad and climb the stairs to the next pickup.

Know No Fear

1. Secret 1 of 10 (Unconfirmed). In the starting room with all the weapons, check the right corner for an open crate.
2. Secret 2 of 10 (Unconfirmed). After the elevator up into the final area, go left immediately and check the open crate there.
3. Secret 3 of 10 (Unconfirmed). Go up the ramps and stairs, then right and straight. A crate on the left holds a pickup.
4. Secret 4 of 10 (Unconfirmed). Climb out of that crate, then go right and left again. Another crate nearby holds a pickup.
5. Secret 5 of 10 (Unconfirmed). From that crate, drop down and use the jump pad right there. You land by a pile of crates; the upper one holds a Vortex Grenade.
6. Secret 6 of 10 (Unconfirmed). Leave that crate, go slightly left and forward, and check the crate on the right for the next pickup.
7. Secret 7 of 10 (Unconfirmed). Leave that crate and turn sharply left, cross the open area and go up the ramps on the left. Next to a crate is a purple opening; go through it to an open crate with the pickup.
8. Secret 8 of 10 (Unconfirmed). Leave that crate and turn sharply right. Walk straight for a while, then bear slightly left and continue straight until you reach an open crate. The pickup is inside.
9. Secret 9 of 10 (Unconfirmed). Directly beside the previous crate is another pickup.
10. Secret 10 of 10 (Unconfirmed). A little further ahead, in an open crate, is the last pickup of the base game.

Into the Manufactorum

1. Secret 1 of 8: Imperial Laurel (Reliable). Right in the starting area, look for the crate hanging from the crane. Use the crate on its left to jump across and step into the hanging crate for the pickup.
2. Secret 2 of 8 (Check in game). Go to the spot where you pick up the Boltgun. Hop across the three stacked crates onto the building, turn right, then look to your left for the pickup.
3. Secret 3 of 8: Machine Spirit (Check in game). After the huge area from the previous secret, drop down to the five sewer gates. Check inside the one furthest away for the relic.
4. Secret 4 of 8 (Unconfirmed). Enter the sewers into the room with the red door. After the first jump and before the second jump, spot the locked-off area on the left. Make the second jump, turn round and look up and to the right at the pipes. Shoot the skull there and jump back; the locked area has opened, so go in and take the pickup. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
5. Secret 5 of 8: Infinite Ammo (Reliable). Once you have the rocket launcher, climb the ramp. Just ahead is a closed crate with a servo-skull beside it, blinking red, lying in the goop against a cargo container. Shoot the skull, then step into the opened container. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
6. Secret 6 of 8 (Unconfirmed). Further along the slime canyon you reach another closed crate. Put a shot into the skull beside it, then take the pickup from the opened crate. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
7. Secret 7 of 8: Vortex Grenade (Reliable). At the end of the canyon, during the boss fight, an open crate on the left holds the grenade. It helps with that fight.
8. Secret 8 of 8: Munitions Boon (Reliable). In the final arena, drop down as you enter the room and turn around after landing. The relic sits in an alcove on the ground floor of this last purge arena.

Dread Ascent

1. Secret 1 of 5 (Unconfirmed). In the first bigger area where you fight many enemies, keep to the left and check the crate in the corner for the pickup. Also press the four consoles around the pillar with green lights before you move on, since they count toward secret 5.
2. Secret 2 of 5: Kraken Boltgun Magazine (Reliable). At the red-key area, press the four consoles; this starts a large fight, gives you the red key and opens several doors. Look around the opened rooms for the magazine, which is behind a door unlocked by a console in a purge room.
3. Secret 3 of 5: Vortex Grenade (Reliable). In the next huge area, find the crate hanging from a crane and use the building beside it to reach it. The grenade can also be reached from the higher stack of shipping containers nearby with a careful jump.
4. Secret 4 of 5: Munitions Boon (Reliable). In the middle of that huge area, find the ramp. Below it, an item is locked away behind a fence or gate. Look at a pillar close by for a servo-skull, and shoot it to open the way. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
5. Secret 5 of 5: Imperial Laurel (Check in game). Ride the last elevator up. Before entering the room, look left for a small lift. Go into the room, press the consoles to power it, then leave and ride the small lift down as far as it goes. Drop down and press the button that opens the huge door on the ground; the lift then rises and reveals the final secret. Watch out: If the lift does not work, you missed a console earlier in the level.

Escalating Chaos

1. Secret 1 of 7 (Unconfirmed). After your first fight, drop into the area with the yellow crates. The crate on the left of where you drop has a servo-skull near it. Put a shot into that skull and the crate pops open. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
2. Secret 2 of 7 (Unconfirmed). Shortly after the first secret, before you drop down, you can see an Infinite Ammo pickup on a water tank in the middle of the huge arena. Look straight down from where you stand for a crate directly below, drop in and take the pickup inside.
3. Secret 3 of 7 (Unconfirmed). From where the second secret was, climb onto the water tank in the middle of the huge arena; the pickup lies on top of it.
4. Secret 4 of 7 (Unconfirmed). From the top of the tank, look round for two crates side by side below on the right. Get down to them; the pickup is on the back of one.
5. Secret 5 of 7 (Unconfirmed). In the next room, drop into the water and enter the tunnel for the pickup.
6. Secret 6 of 7 (Unconfirmed). After a while you reach the purple key. Take it, climb up and find the closed crate there, with a skull close by. Shoot the skull to unlock the crate. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
7. Secret 7 of 7 (Unconfirmed). In the last area, a closed crate sits in the trench in the middle, again with a skull near it. Shoot it to unlock the crate. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.

Desecrated Foundries

1. Secret 1 of 7 (Unconfirmed). Leaving the bridge, enter the building on your right. Smash the crystal and follow the single route until you reach the pickup. Take it, then come back to carry on with the mission.
2. Secret 2 of 7 (Unconfirmed). After returning, go left instead of right and check inside the crate.
3. Secret 3 of 7 (Unconfirmed). In the platforming area, climb all the way up and follow the route. Drop down at the end and check inside the crate.
4. Secret 4 of 7 (Unconfirmed). One door later, in the next huge area, look halfway down the ramp on the right. Go in, follow the route, drop into the hole and follow the only way up to a room with the pickup.
5. Secret 5 of 7 (Unconfirmed). In the huge hangar with several doors, start with the one on the left. Check the back left of the room inside.
6. Secret 6 of 7 (Unconfirmed). After using the red key and riding down, find an opening in the wall with a crate inside it. The pickup is in the crate.
7. Secret 7 of 7 (Unconfirmed). In the last huge area, keep to the left and look for a servo-skull near a crate. Shoot the skull, then step into the crate for the last secret of the level. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.

The Daemonic Forge

1. Secret 1 of 11 (Reliable). Right at the start, check the crates straight ahead for a servo-skull between them. Hit it and one of the crates unlocks; the grenade is inside. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
2. Secret 2 of 11 (Unconfirmed). As soon as you enter the arena, turn right and check the crates on the right, where the ramp leads down. The pickup is inside, at the back.
3. Secret 3 of 11 (Unconfirmed). Take the ramp from the previous secret to the other side. As you come up it, look slightly right on a steel pole for a servo-skull and shoot it. A crate nearby opens. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
4. Secret 4 of 11 (Unconfirmed). Leave the previous crate and turn left, climbing the ramp to the plateau. Two crates stand on the left wall; the pickup is in one of them.
5. Secret 5 of 11 (Unconfirmed). From the previous plateau, take the next steel ramp and look for a hanging crate. Hit the skull on it and the crate unlocks. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
6. Secret 6 of 11 (Reliable). Look straight ahead from the previous spot to a strange structure. Climb onto it and then jump left into the opening in the lava. A similar corridor lies directly opposite, for the next secret.
7. Secret 7 of 11 (Reliable). Directly opposite the previous structure is a similar one, with another opening in the wall. Step into it.
8. Secret 8 of 11 (Unconfirmed). From the previous opening, go into the building on the right. As you enter, check the corner of the ground for a servo-skull. Shoot it, and the crate in the same room opens. Watch out: Shoot the servo-skull with the blinking red eye to open it; it will not open any other way.
9. Secret 9 of 11 (Unconfirmed). Take the ramps on the left and follow the steel structure until you see a crane with a crate hanging from it. Jump into the crate.
10. Secret 10 of 11 (Unconfirmed). On the opposite side from the hanging crate, on the first floor, find the stacked crates and check inside for the pickup.
11. Secret 11 of 11 (Unconfirmed). From the previous crates, go to the ramp. Under it, at the back, there is a wall you can interact with for the last secret of the expansion.

Campaign and difficulty achievements

1. Chapter I - Complete (Reliable). Finish all eight Chapter 1 missions, from Off Target to Sanctum Magistratum, on any difficulty.
2. Chapter II - Complete (Reliable). Finish all eight Chapter 2 missions, from Corrupted Canyon to Heresy Lurks, on any difficulty.
3. Chapter III - Complete (Reliable). Finish all eight Chapter 3 missions, from Smelting Decks to Know No Fear, on any difficulty.
4. The Emperor Protects (Reliable). Finish every campaign mission on The Emperor Protects difficulty.
5. My Armour is Contempt (Reliable). Finish every campaign mission on My Armour is Contempt difficulty.
6. Emperor's Mercy (Reliable). Finish every campaign mission on Emperor's Mercy difficulty.
7. Exterminatus (Reliable). Finish every campaign mission on Exterminatus difficulty, the hardest setting. Watch out: The accessibility invincibility option is reported not to disable achievements, which makes this run easier.

Boss achievements

1. Defeat a Lord of Change (Unconfirmed). Defeat a Lord of Change. The first one you meet is the boss of the mission Forbidden Knowledge in Chapter 1.
2. Defeat a Great Unclean One (Unconfirmed). Defeat a Great Unclean One. The first one you meet is the boss of the mission No Truth In Flesh in Chapter 2.

Horde Mode achievements (free update)

1. Let None Survive (Reliable). Complete Horde Mode on any difficulty.
2. Duty Fulfilled (Reliable). Complete Horde Mode on Emperor's Mercy difficulty.
3. For the Emperor! (Reliable). Complete Horde Mode on Exterminatus difficulty. Watch out: Whether finishing Exterminatus also unlocks the lower Horde difficulties is not confirmed, so do not rely on it.

Forges of Corruption achievements (paid expansion)

1. The Emperor Still Protects (Reliable). Complete every Forges of Corruption mission on The Emperor Protects difficulty.
2. Contempt Maintained (Reliable). Play through the five expansion missions on My Armour is Contempt difficulty.
3. Mercy Extended (Reliable). Clear all of the expansion's missions on Emperor's Mercy difficulty.
4. There Is Only War (Reliable). Beat the whole expansion on Exterminatus difficulty, the hardest setting. Watch out: Finishing the expansion on Exterminatus should also unlock the three lower-difficulty expansion achievements.
5. Rage Incarnate (Unconfirmed). Defeat a Helbrute. It is listed with the expansion achievements, so expect to meet one in the expansion levels.