Cheat mode:
     Select  the  "Enter  Codes" option at the main menu. Enter one of
the following codes to activate the corresponding cheat function.

Bonus online characters:
     Enter  HI9WTPXSUK  as  a  code to unlock the American Assault and
German Commander bonus online characters.

All recon points:
     Enter 0ZNDRBICRA as a code.

Kilroy alert:
     Enter  SH2VYIVNZF  or  4V35JZHQD6 as a code. The message "You are
near  a  Kilroy"  will  appear when a hidden Kilroy drawing is in your
proximity.


Unlock "Hard" Difficulty
     Beat campaign on "easy" or "normal" difficulty.