Ghost Recon Advanced Warfighter Codes -

Walls and barriers:
You cannot hide behind walls or barriers in first person view unless you plan on staying at that location for awhile. Unlike third person view where you can just tap Triangle to automatically hide, you must hold Triangle in first person view to hide. Press to look over a barrier or to open fire. Press or (depending on how you are positioned) to look out.

Slip and slide:
When you are running and suddenly get fired upon, quickly tap the . You will slide along the ground. If you are running and click and hold the , you will do a sort of belly flop and slide on your stomach.