Tom Clancy's Ghost Recon 2 (PS2)

General Cheats
At the main menu enter this code: X, LEFT, TRIANGLE, SQUARE, X, SELECT (all guns).
At the title screen enter this code: X, L2, TRIANGLE, R2, SELECT (unlocks all missions).
At the title screen enter R1, L1, L1, R1, R1, R1 (unlocks all the maps in quick mission mode).
Pause the game and enter L1, R2, L2, R1, SELECT (invincibility).