A 7 minute long video documentary for Halo 3 is now available to download from the Xbox live marketplace. If you don't have access to Xbox live, keep checking the forums because we'll be posting links to the video as soon as it emerges.

From Major Nelson:

In the second Bungie “Vidoc” we take a long hard look at the ferocious new antagonist for Master Chief, the Brute. Now that a tentative alliance has formed between Humans and Elites, the fighting focus of Halo 3 switches to the monstrous Brutes. These tenacious foes have improved graphically with the advent of the Halo 3 engine and the power of the Xbox 360, but more importantly, their tactics, weapons, vehicles and AI have all followed suit, making the Brutes the worthiest opponents the Chief has ever faced. See how the designers, artists and programmers set about the herculean task of replacing a fan favorite – the mighty Elite – with an unforgettably ferocious adversary. See how Brutes behave in packs and as individuals with brilliant new animation and AI. Take a first look at the new Brute graphics, weapon and armor designs and finally, get the first ever public glimpse at Halo’s legendary Campaign.

Let us know what you think about the video by visiting the gaming forums.