Halo: Forward Unto Dawn preview
A preview, titled "Squad", for the upcoming webseries that will lead up to the release of Halo 4 is now up for viewing for those wanting to get acquainted with the characters early.
Gameinformer has the video and report the series will consist of five 15 minute episodes.
The video is also available below. The teaser for the series posted recently gives some background to the depicted state of the earth.