Checkpoint A. Go to ground level at the start of the level. Face the blue platform used to drop down from, with the white truck on your right. Find the forklift on the left, at the side of the warehouse. A bag is next to the warehouse next to a closed shutter opposite that forklift.
Checkpoint B. Enter the first green car parking garage. Defeat the guards, then go to the far left rear part of the garage, where there are two white trucks. Climb on to the truck to the right, then jump on the pipe, and climb onto the air vent. Continue around until you are at the corner where you jumped up from, but now on the other side of the vent. You cannot jump over the vent because you have climbed up; you must go around.
Checkpoint D. When reaching the outside deck of the ship, to your right is a dark room. A bag is in the corner on the ground.