Counter-Strike (Xbox)

Silent Weapons
To silence a weapon, press B and flip to another weapon -- and then flip back and the first weapon should be silenced.

Single Player Cheats
These only work for single player games (i.e., no Xbox Live connection).

Press START and tap the D-Pad for:
Low Gravity - UP, RIGHT, RIGHT, UP, UP, LEFT
No Target Mode - LEFT, RIGHT, RIGHT, LEFT, UP, DOWN
IFF Glow - RIGHT, RIGHT, RIGHT, UP, DOWN, LEFT
Big Heads - UP, UP, LEFT, RIGHT, UP, DOWN
Player clipping - UP, DOWN, LEFT, RIGHT, DOWN, UP
Autoaim Toggle - DOWN, DOWN, DOWN, DOWN, UP, UP
Add 16,000 Credits - UP, UP, DOWN, DOWN, LEFT, RIGHT
Outfit Change - LEFT, RIGHT, DOWN, UP, LEFT, RIGHT