Intel 24: "Info: SGT Fox" under "Project Harbinger" It can be found directly in front of you through the double sliding doors behind the dead man on the counter

Intel 25: "Info: SGT Morales" under "Project Harbinger" After a series of similar rooms you will enter a room with a corpse in red The Intel is by the body

Intel 26: "Harbinger Failures" under "Project Harbinger" After an Abomination scares you keep going down the corridors to find a corpse in red The Intel is lying next to him

Intel 27: "Schedule Change" under "Armacham" Reach the tunnels with the big battle To the right of this room is the Intel Note: This is after all the explosions and running down the catwalks

Intel 28: "Info: P Fettel" under "Project Origin" After the comment by Vanek you will enter a big room with a lot of boxes In the middle of the room is a shelf with the Intel and supplies