Intel 20: "Demolition Plan" under "Armacham" Search the monitor room upstairs after the big battle

Intel 21: "IM Transcript #3" under "Genevieve Aristide" After obtaining the flamethrower there will be a blocked hallway Follow the bloody trail to find the Intel

Intel 22: "IM Transcript #2" under "Genevieve Aristide" Enter the room that has an "X" on the outside wall next to the two soldiers investigating the headless body The Intel is in the rear by a monitor

Intel 23: "Dp Guidelines" under "Armacham" It is found directly across from the window when you see an Abomination crawling towards the soldiers