In addition to the Halo 4 trailer from this morning's Microsoft E3 2012 Media Briefing, we've also got the full gameplay video as well. In the trailer, which you can view after the break, you get over 5 minutes of content showing off new enemies in the Halo world, and new abilities for Master Chief. 343 Industries looks to be off to a great start with its new Halo trilogy. Halo 4 will be available on November 6.