if being looking around on the net, about the gun sounds and stuff seems they are i quote: 'heavily coded' they pointed me to the cod4 SDK tool, it has all of the sounds i guess.
If searched it, came across some files called, bullet_penetration_mp (no extension?) gfx_bullethit_X (X = glass,wood etc...) agian no extension? i tought it would be a .wav sound?