Crack the ODST code, win some wallpaper

Not literal wallpaper, of course. That would be boring. No, the latest bit of Halo 3: ODST marketing will reward you with digital wallpaper, assuming you can figure out its devilish puzzles (or look up the solution on the internet). Microsoft has released a little interactive video series on its ODST splash page, in which Sgt. Buck -- the leader of the ODST squad in the game -- interviews potential candidates for a mission.

Within each interview, there is a section that has been "redacted" and requires an access code for clearance. It's up to Halo fans to uncover just what those codes are. For those that want to discover them on their own, we won't spoil the fun for you. Here's a hint though: Watch the live action ODST trailer again. The rest of the codes can be found within the ODST site itself.

For those that don't care about all that and just want some wallpaper, you can find the codes -- expertly hidden -- after the break.

Dutch - 12-485-TA
Romeo - 15-926-PI
Crespo - 47-074-SN
Wallpaper - 06-078-TI