Half-Life: Battles of the Millenium Cheats :
Cheats - Spam Special Weapon
by Unregistered Apr 25, 2005
To do the invisible cheat you must first join a game. While inside the game, go to the console (~ key) and type: model freeza. Then Type this: model dracula. This will make you completely invisible unless you be batman. If you are batman and do the invisible cheat then your back will have letters that say: "I am a cheater".