Halo 3: ODST

Halo 3: ODST, formerly known as Halo 3: Recon, is a First Person Shooter (FPS) video game. It was developed by Bungie, LLC. and published by Microsoft Game Studios and is set to be released in October 26, 2009.

ODST is a campaign expansion and prologue to Halo 3 which will bridge a gap between Halo 2 and Halo 3.

Speculation
Although Bungie consistently stated that Halo 3 was the last game in the trilogy, they never ruled out the possibility of releasing new games set in the same story in the future. An interview by MTV with Don Mattrick (Senior Vice President of Microsoft's Xbox division) revealed that Bungie's game is at the very least Halo-related, and that it is not Bungie's collaborative efforts on Halo Wars or Halo: Chronicles, but a "new" game.

Although a proper announcement was meant for July 16th, 2008 at E3, it was canceled by Microsoft because they wanted to focus on games by first-party developers that were coming out in 2008 - criteria which the Bungie project did not fit. It was also stated by Microsoft that they did not want to further lengthen their press conference so as not to stretch the attention span of the attendees, and that they wished to give the new Halo project an event of its own to release details on it.

The most popular rumor that had surrounded this new title was that it was a squad-based shooter in the Halo universe with the player filling the role of a Marine Captain, but this is untrue as the player will be filling the role of an ODST Lance Corporal, who goes by the name of The Rookie. .

Speculation about a supposed third-person shooter, giving the player control of Marines or ODST's instead of SPARTANs, circulated long before Bungie revealed their next project would be Halo-related. Originally, rumors held that this would by the Peter Jackson game, Halo: Chronicles. The presence of Christian Allen, a former Marine and Red Storm employee who worked on the Ghost Recon and Rainbow Six series and joined Bungie in early 2007, heightened speculation.

Known Information
Production of Halo 3: ODST has been known to be in the pre-production phase since January 2008 [http://download.microsoft.com/download/0/9/2/0