People got these codes for pre-ordering the game, but they aren't locked to any copies so anybody can use them.
0ZNDRBICRA = Unlocks all Recon areas ( achievements unlocked ) First character is a zero.
4V35JZHQD6 = Kilroy detector ( makes sound when near Kilroy, Achievements do NOT unlock )
These don't effect any other achievements to my knowledge, and can be entered whenever you want. In the main-menu just go to options > codes and enter it in. Enjoy.
This edit will also create new pages on Giant Bomb for:Beware, you are proposing to add brand new pages to the wiki along with your edits. Make sure this is what you intended. This will likely increase the time it takes for your changes to go live.
Comment and Save
Until you earn 1000 points all your submissions need to be vetted by other Giant Bomb users. This process takes no more than a few hours and we'll send you an email once approved.