Call of Duty: Modern Warfare 2/Enemy Intelligence

S.S.D.D. (1)

 * North of the entrance to 'The Pit'

Takedown 2/4

 * Later on in the level, there will be a building with a sniper in it, after you take out this sniper, go around and enter the building, there will be a piece of intelligence in there.
 * In the building across the street from the previously mentioned intelligence

Wolverines! 1/4

 * In a store to the left, after the alley after the BMP

The Only Easy Day... Was Yesterday (3)

 * After the first hostages, go up the flights of stairs, it will be to your left on a shelf.
 * In a storeroom, the next building to the right after the building where you plant the C4.
 * Inside a building, there is intelligence behind the stairs going to the second floor (these stairs do not lead to the end of the campaign, there are weapons at the top).

The Gulag (4)

 * Before going down to the main jail, there will be a house to the right with some enemies in it, after killing the enemies, get the intelligence.
 * After you get to the control room, walk around the left and you will see it.
 * After where you pick up the Riot Shield, in the first room to the right.
 * After the meeting with Captain Price, turn around and you will see it.