Chapter 5: Argent Energy Tower
Collectible 9 – While moving through this level, you’ll come across Olivia at an elevator. Afterwards, head into the maintenance access then head towards the containers. Move upwards to find this item.
Collectible 10 – On your way up the tower, stop when you reach the second central platform. Under the catwalk is this collectible.
Chapter 6: Kadingir Sanctum
Collectible 11 – At one point, you will open a yellow door that leads to a portal. Before entering that portal to continue your mission, search the right side of the room.
Collectible 12 – There is a Seek and Destroy Rune Trial Stone in the next area. While climbing the stairs to reach it, climb the rock to your right about halfway up the stairs.
Chapter 7: Argent Facility Destroyed
Collectible 13 – Once this chapter starts, go down to Level 1. Next to the broken staircase is a hole in the wall that you can enter to find Doom collectible #13.
Collectible 14 – Locate the Yellow Keycard for this area. Afterwards, make your way to the maintenance access point up the stairs. You’ll find this item, a model of the Baron of Hell, on top of crate.
Chapter 8: Advanced Research Complex
Collectible 15 – When you come across the ravine where you find an Argent Cell (these are very useful), climb up the ledges to find a cave a bit higher up. Head inside.
Collectible 16 – Make your way to Prototype Lab 01, and climb up the center of the room. You’ll find a maintenance vent that leads you to this collectible.
