This latest ViDoc from Bungie on Halo 3: ODST is quite the treat. It focuses on the Firefight mode, complete with narration from cigar-chomper Sgt. Johnson himself, even revealing a few of the Achievements and Skull modifiers. It's a pretty content-rich video for only being around two minutes and, well, we'd say more, but then that would only get in the way of you clicking the play button.

[Thanks, jakob!]

This article was originally published on Joystiq.