On July 31, 2007, an unnamed, five-episode series premiered on five retail websites, including those of Best Buy, Circuit City, and Gamestop. These episodes detail the Red Team's transition from Halo 2 to Halo 3;[3] Sarge introduces his men to the new graphics, weapons, and vehicles. Segments are intermixed with comments made by Church and Tucker, who are spying on their activities.