Freedom Fighters Cheats for the GameCube

Invisibility:
Y, A, B, X, X, Left.

Submachine Gun:
Y, A, B, X, Y, L.

Rocket Launcher:
Y, A, B, X, Y, Left.

Shotgun:
Y, A, B, X, X, L.

Unlimited Ammo:
Y, A, B, X, A, Right.

Sniper Rifle:
Press Y, A, B, X, Y, Right

Heavy machine gun:
Press Y, A, B, X, Y, Down

Nail gun:
Press Y, A, B, X, A, Left

Maximum charisma:
Press Y, A, B, X, A, Down

Cycle through spawn points:
Press Y, A, B, X, A, L

Fast motion:
Press Y, A, B, X, X, Down

Slow motion:
Press Y, A, B, X, X, Right

Flymo ragdolls:
Press Y, A, B, X, B, L

Blind Enemies:
Press Y, A, B, X, X, Left

Max Men:
Y, A, B, X, A, L.

Bonus level:
Beat the game on Rebel difficulty or higher.

Tons of Ammo:
When you get to your base in the Bronx's sewers, leave an assault rifle there and take the shotgun for a mission. For each assault rifle that is left in the mission, the ammo is transfered to the assault rifle in the HQ in the sewers. This works until you get the ammo box for that gun. (This cheat works for every other gun.)

Thanks to Revolution readers bob joe, jacob klapps, and Panzeria!