Warhammer 40,000: Boltgun

There are 46 secrets in total in chapter 1 placed across missions 1-8.

Secrets are hidden boons to collect for a short duration.

These are named as:
Infinite ammo ( for thirty seconds).
Full Contempt (300 armor).
Boltgun Magazines (Dragonfire & Kraken) - (more damage & shred armor faster for that extra magazines)
Aura Of Doom (increases damage of all weapons & decreases damage you take for limited time) - (screen goes red).
Munitions Boon (increases your maximum ammo of all weapons).
Machine Spirit (buffs each equipped weapons differently for remainder of the mission).
Vortex Grenade (best granade) - (for more damage)


For Secrets/collectibles in every level, I made this guide.
[Use accessibility options to finish the game faster. End it on Exterminatus difficulty, it will also unlock all the lower difficulty achievements.]


Extended Timestamps:
00:00:00 - Chapter 1
00:03:15 - Off Target | 1 Secret
00:06:10 - Mountain Batteries | 6 Secrets
00:18:15 - Sector Imperialis | 7 secrets
00:30:05 - Silent Martyrs | 6 secrets
00:48:55 - Martyrs Crossing | 7 secrets
01:06:15 - Venerable Bastion | 7 secrets
01:23:15 - Forbidden Knowledge | 6 secrets
01:43:00 - Sanctum Magistratum | 6 secrets

01:59:45 - Chapter 2
01:59:50 - Corrupted Canyon | 6 secrets
02:14:10 - Canyon Magrails | 7 secrets
02:34:00 - Tunnels Beneath | 6 secrets
02:42:50 - Sanctum Manufactorum | 5 secrets
02:55:15 - Hidden Sins | 7 secrets
03:08:05 - No Truth In Flesh | 8 secrets
03:26:25 - The Deep Vault | 6 secrets
03:39:10 - Heresy Lurks | 6 secrets

03:49:35 - Chapter 3
03:49:40 - Smelting Decks | 7 secrets
04:01:05 - Promethium Supply | 5 secrets
04:11:45 - Galvanic Forgeshrine | 6 secrets
04:25:00 - Grand Elevator | 6 secrets
04:50:00 - Big Guns Never Tire | 5 secrets
04:56:30 - Death Is Honour | 6 secrets
05:05:55 - Furnace of Damnation | 5 secrets
05:17:50 - Know No Fear | 10 secrets

05:31:40 - Subscribe!

Secrets are hidden boons to collect for a short duration.

These are named as:
Infinite ammo ( for thirty seconds).
Full Contempt (300 armor).
Boltgun Magazines (Dragonfire & Kraken) - (more damage & shred armor faster for that extra magazines)
Aura Of Doom (increases damage of all weapons & decreases damage you take for limited time) - (screen goes red).
Munitions Boon (increases your maximum ammo of all weapons).
Machine Spirit (buffs each equipped weapons differently for remainder of the mission).
Vortex Grenade (best granade) - (for more damage)


For Secrets/collectibles in every level, I made this guide.
[Use accessibility options to finish the game faster. End it on Exterminatus difficulty, it will also unlock all the lower difficulty achievements.]


Extended Timestamps:
00:00:00 - Chapter 1
00:03:15 - Off Target | 1 Secret
00:06:10 - Mountain Batteries | 6 Secrets
00:18:15 - Sector Imperialis | 7 secrets
00:30:05 - Silent Martyrs | 6 secrets
00:48:55 - Martyrs Crossing | 7 secrets
01:06:15 - Venerable Bastion | 7 secrets
01:23:15 - Forbidden Knowledge | 6 secrets
01:43:00 - Sanctum Magistratum | 6 secrets

01:59:45 - Chapter 2
01:59:50 - Corrupted Canyon | 6 secrets
02:14:10 - Canyon Magrails | 7 secrets
02:34:00 - Tunnels Beneath | 6 secrets
02:42:50 - Sanctum Manufactorum | 5 secrets
02:55:15 - Hidden Sins | 7 secrets
03:08:05 - No Truth In Flesh | 8 secrets
03:26:25 - The Deep Vault | 6 secrets
03:39:10 - Heresy Lurks | 6 secrets

03:49:35 - Chapter 3
03:49:40 - Smelting Decks | 7 secrets
04:01:05 - Promethium Supply | 5 secrets
04:11:45 - Galvanic Forgeshrine | 6 secrets
04:25:00 - Grand Elevator | 6 secrets
04:50:00 - Big Guns Never Tire | 5 secrets
04:56:30 - Death Is Honour | 6 secrets
05:05:55 - Furnace of Damnation | 5 secrets
05:17:50 - Know No Fear | 10 secrets

05:31:40 - Subscribe!