Directions:

Invincibility:
Pause the game and press X, Left Trigger, B, Right Trigger, Back, Y, X.
Cheat codes:
Enter these codes at the Enigma Machine.

ENCHILADA - Unlock Everything
BASS - Unlock Mission 2, A Storm in the Port
STURGEON - Unlock Mission 3, Needle in a Haystack
PIKE - Unlock Mission 4, Several Bridges Too Far
TROUT - Unlock Mission 5, Rolling Thunder
CATFISH - Unlock Mission 6, The Horten's Nest
SALMON - Get a Gold Medal on the previous mission
LONGVIEW - Snipe-O-Rama, all weapons are sniper mode
NOHITSFORU - Bullet shield
FLIPBOOK - Animation reel
COTOBREATH - Paintball FMV


Get the EA LA Medal of Valor:
Finish with a Gold Star in every mission.

Understand the Germans:
Turn on the subtutles in the Options menu to undertand what the Germans are saying.