Various cheats
     Edit  the  config.ini file in C:\Documents and Settings\MyName\My
Documents\US2\.. and add the following text to the end:

bindc +DIK_GRAVE

     This  will  enable  the  console  in  the  game.  Do not edit the
config.ini  file  in  the  game's  install  folder, only the one shown
above.  You  can  now  press  ~  (tilde)  in  game and type any of the
following cheat codes.

Cheat code:     Effect:

sv_cheats 1     Activate Cheat Mode

game_godmode 1  God Mode On

game_godmode 0  God Mode Off

addammo all     Add Ammo to All Weapons

addwpn ?        List Weapon Numbers

addwpn #        Add Weapon # from List