When a tank starts shooting at the enemies in a narrow alley, go to the right and find a building with a hole in the wall (see the picture). Go up the stairs. The laptop is in a corner of a room where the terrorists are hiding.
When the tank keeps on shooting, locate a shop with some clothes in the window (see the picture) and walk up the stairs. The laptop is on a bed in the room full of terrorists.
After some shooting in the alley (where your team was attacked by sub-machine guns), wait for your mates to open the door to the building (that's the one in the pic) and go upstairs. The last laptop is in a room from which the terrorists were shooting at you.
Shock and Awe
The laptop is on the second floor of a building, where American Marines are trapped.
After setting them free, get into a nearby building. Go up the stairs and search the storey. Laptop is hidden in a small room next to a stairway.
Laptop is in the first house on the hill. To get it, search all the rooms.
There's a two-storey house, where the armoured vehicle showed up. Laptop is on a table, ground floor level.
All Ghillied Up
Laptop is in an orthodox church, and to be specific, in a tower occupied before by an enemy soldier. Climb up the ladder to get there (see the pic).
The other laptop is on the barrels. There's a group of soldiers guarding it. To get it, it is inevitable to kill them.
After killing a guard standing on the top of the stairs, walk up and get through the window to a small room. Laptop is on a table.