Chapter 6 - Intestinal Fortitude

20. Car Gold Magazine

Once you start the chapter, turn to the left and you should see the collectible on the ground. It's pretty hard to miss.

21. COG Tag: CSID: 838186-22AO3-SF

After a cut scene with everyone's favorite rookie, move forward, hugging the left wall. Eventually you'll come to the collectible.

Act 3 - Gathering Storm - 6 Collectibles

Chapter 2 - Origins

22. Interoffice Memo - Niles Samson

Once the chapter begins, move forward. You'll come to a bank of video monitors that turn on once you approach them. To the right of the monitors is a room. Enter the room and turn right. The collectible is on the floor between the desk and the cabinet.

23. Memo - Dr. Doug Sato

Wait for the checkpoint that occurs after picking up the last collectible. Once you hit that checkpoint, it's time to start looking around. You'll come to another door with monitors atop it. To the right of this doorway is another door. Go through the door until you come to the closed door. Kick it open and go towards the half open door. The collectible is on the ground in front of the half opened door.

Chapter 3 - Rude Awakening

25. Doctor's Journal - Dr. Stephanie Zimmer

Once you get outside and the Razorhail starts falling, Dom will mention using a rail cart to get around the level. Don't go in the cart just yet. There's a barn to your right. The collectible is in the barn on the floor.

26. Captivity Marks

Progressing forward, you'll have to turn three wheels to raise three garage doors to protect you from the hail. Once you've done so, move forward so that the train car is on your left. Look to your right and you'll see an open area leading to a large enclosed space. Dive across the open area and enter the enclosed space. The collectible is on the wall to the left once you enter the building.

Chapter 5 - Displacement

27. Stranded's Journal - Stu

Once you get to the area where you have to take out the gunship, do so and you'll see a set of stairs leading upwards. Keep going up the stairs and you'll eventually get to the collectible.

Act 4 - Hive - 9 Collectibles

Chapter 1 - Priorities

28. Locust Terminal

You'll ride three elevators and eventually get to an area where you'll have to kill a bunch of Locust. Once everyone is dead, look to the left to find some Locust terminals. The collectible is a terminal among the terminals. This one is also hard to miss as it's right next to your current objective.

Chapter 2 - Answers

29. Prisoner's Journal - Jonathan Harper

Head to the second terminal and start looking around on the left side of the path. You'll see a metal structure with a blue coffin thing (what Baird was trapped in) on top of it. The collectible is near it.

Chapter 3 - Hornets' Nest

30. Locust Jailer Document

Once you start the chapter, head straight until you have to go right. Go down the stairs and take the passage on your right. Go left at the end of the passage and the collectible is on the floor.