1 - Near the beginning, after you move forward from the first building, go inside the house to the right of where Soap stops in the road (there is a blue car in the garage). Go past the blue car and into the kitchen to find the Intel on the table.

2 - After clearing the small lot (has a bunch of appliances and cars), instead of going right up the stairs between buildings, go left around the three-story house (floors are colored red, yellow, red), and look in the little hut attached to its side to find the Intel on some barrels.

3 - As you move up the sloped street, there is a blue car on the right side of the street. In the building on that side is the Intel up on the second floor on the table.

4 - When you enter the last open lot and are supposed to go up on the roof, turn to the right, and look in the window behind the goal fence to find the Intel inside a window.