Call of Duty 4: Modern Warfare Enemy Intel 22

Mission: ACT 2 - One Shot, One Kill
Location: This intel is found in the first apartment building (post-MacMillan's injury) that is entered in an attempt to lose the enemy troops. From the checkpoint room, move into the hall and enter the room straight across from the hall doorway. Inside, turn left and move in that direction until you reach the damaged room. Exit the apartment building through the hole in the wall and turn right to see a fire escape. Quickly make your way to the very top of this fire escape to find the intel.

This video is from our unofficial game guide. You can view the full guide here