These are the Cheats to Rainbow Six

teamgod - God mode for all the team members
avatargod - God mode for the person you are controlling
5fingerdiscount - full ammo
turnpunchkick - 2D mode
1-900 - Heavy breathing mode
meganoggin - Very big heads
bignoggin - big head mode
explore - turns off victory conditions
nobrainer - Disables AI ( I do NOT recommend this cheat code )
silentbutdeadly - Your character will fart while walking ( very funny )
clodhopper - Large feet and hands

Press ENTER during game play to type in the code.