I have tried typing "nada" at the "main menu"as they have suggested to access cheat commands.I've tried pressing the "~" key first.I tried jus typing nada.Maybe I dont understand what the "main menu" is.I dont know.Any body got any ideas?
Go HERE scroll down to IGI2: Covert Strike Trainer +2 and download the file, extract it to your IGI2 game directory. Run the trainer then load your game. Now during the game just press F1 unlimited ammo and F2 God Mode, it works ok because I've tested it. Have Fun