Ghost Recon
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Mission Co-operation And Firefight Co-operation modes
Beat the game and save. Now start with the saved file. Go to Multipalayer and you'll notice that there're Mission Cooperation and Firefight Cooperation modes availible in Multiplayer.
Note: In Ghost Recon there are two different games: Ghost Recon and Ghost Recon: Desert Seige(DS) (used to be sold seperately.) After you beat the Ghost Recon (15 Missions), there will be 8 new missions(for Desert Seige).
All guns
At the main menu, hit x, left, triangle, square, x, select.
All special features
Press L1, L2, R1, R2, X, Select at the title screen to unlock all specials features.
All missions
Press X, L2, Triangle, R2, Select at the title screen to unlock all missions.
Invincibility
Begin a mission, then pause game play. Press L1, R2, L2, R1, Select to become invincible.