Open the "config.ini" file in "C:\Documents and Settings\YourUserName\My Documents\US2\" folder with notepad, and add the following text to the end: bindc +DIK_GRAVE (console_showhide) this will allow you to press the ~ key and open the console. when you start the game, make sure you type the following command to enable cheats: sv_cheats 1.

Code	Effect
addammo	get ammo.
addwpn [number]	get specific weapon.
addwpn all	get all weapons.
game_godmode 1	god mode on.