Kill the guy on the left and proceed across the bridge. Go take a right do the tunnel quickly by side stepping and use the Kf7 to kill the 2 guys in there. Proceed into the first open area. Kill the guy who walks from behind the tower. Then move to the far left wall and kill the guy patroling that area. Forget about the 2 guys in the pill box, but do kill the guy behind the crates near the doors. Open the gates and quickly kill the guard (using the pp7) running towards the alarm. Then turn around and kill the guy running (or shooting at you). Shoot the alarm w/pp7 and go through the gates. Then proceed to the locked gate. Shoot off the lock and sid step along the pathway till you get to the first tower. Open the door and shoot the alarm. Do the same for the last two towers. Once you get the last one, head back towards the middle one where the jumping area is. Shoot any guys that are in the way with you soviet. Jump off. Get the cheat.