Call of Duty 4: Modern Warfare/Enemy Intelligence

Throughout the game, there are pieces of Enemy Intelligence to collect. This will list the places to find it. These will unlock cheats in the options when a certain amount of intelligence is found and the game has been completed on any difficulty.

Crew Expendable 2/2

 * To the left of the two enemies that are are sleeping.
 * In the middle of the lower cargo deck inside (with all the enemies)

Blackout 2/2

 * In the shack to the left near the enemy killed on the bridge near the start of the level
 * In the house that has the power cut it is in the bathroom (Beind the room Nikolai is in)

Charlie Dont Surf 3/3

 * In the basement of the HQ building (in the little room on your left)
 * upstairs in the building that has most of the roof blown off
 * upstairs in the building where the truck that has the 50 cal.drives up on the road

The Bog 2/2

 * in the building that is in front of you when you start the mission( you must let your guys open the upstairs door and its inside that room)
 * In the market that you have to go through to get to the tank (its behind some boxes on your left)

Hunted 2/2

 * After you get out of the house after escaping from the helicopter, it will be in the building with the soda machine, on the desk to the right.
 * Near the end of the level, where you have to get inside a barn, there will be a table under the shelter, the intelligence is there.