Ghost Recon cheats and cheat codes for Gamecube

Ghost Recon Desert Siege Bonus levels:
Finish the 15 normal levels

Medals:
Purple Heart: Get wounded or killed in action.
Bronze Star: Get 15 kills
Silver Star: Get 20 kills
Distinguished Service Cross: Get 25 kills
Congressional Medal Of Honor: Get 30 kills

Unlock all 12 heroes as playable characters in quick mission and campaign modes:
Finish the first 12 missions in campaign mode