Yahoo! Games will exclusively unveil two new Halo 3 videos this week.
The first, entitled "Museum," depicts a former UNSC Marine reminiscing about a great battle he fought alongside Master Chief -- a battle players will get to experience first-hand in the upcoming action shooter.
The second video, entitled "Believe," will be the full-length version of an upcoming TV commercial that's part of the game's launch campaign. The additional footage will only be available to view on Yahoo! Games.