Various cheats
     While  playing the game, press [~] to display the console window.
Type "devmap mak" and press [Enter] to enable cheat mode.

Cheat code:         Effect:

give all            All weapons

devmap [map name]   Change maps

notarget            Disable AI

god                 God mode

mapname             List maps

noclip              No clipping mode


Level Select Codes
     First  unlock  the  game's  console  by going to Game Options and
select  "Yes"  for  the  Game Console. Next open it up with the ~ key.
Then, type in these codes to go to the level.

Devmap see2         Play the mission Blood and Iron

Devmap pel1a        Play the mission Burn 'Em Out

Devmap ber2         Play the mission Eviction

Devmap pel2         Play the mission Hard Landing

Devmap pel1         Play the mission Little Resistance

Devmap pel1b        Play the mission Relentless

Devmap ber1         Play the mission Ring Of Steel

Devmap mak          Play the mission Semper Fi

Devmap see1         Play the mission Their Land, Their Blood

Devmap sniper       Play the mission Vendetta


Modes
     Complete certain objectives to unlock different game modes.

Veteran mode: 
     Reach Level 32 to unlock Veteran mode, which is a Co-op mode with
much tougher enemies.

Zombie mode: 
     Successfully  complete Campaign mode to unlock Zombie mode, which
is a four-player Co-op mode against endless waves of Nazi zombies.



Cheats for RUSSIA vs. GERMANY levels
     Go into the options menu and enable the game console, then 
(in menu or gameplay, it doesn't matter) press the ~ key to open it. 
Type the password for each level to play it on cheat mode.

Devmap see2:                  Play the mission Blood and Iron 
                              (VEHICLE LEVEL)

Devmap ber3b:                 Play the mission Downfall (FINAL USSR LVL)

Devmap ber2:                  Play the mission Eviction

Devmap ber3a:                 Play the mission Heart of the Reich

Devmap ber1:                  Play the mission Ring of Steel

Devmap see1:                  Play the mission Their Land, Their Blood

Devmap sniper:                Play the mission Vendetta

Devmap nazi_zombie_prototype: Play the Nazi Zombie game extension