During today's keynote from Tokyo, Japan, John Schappert, Corporate Vice President of Xbox LIVE, Services and Software, unveiled Halo 3: Recon, a prequel to Halo 3, set to be launched during Fall 2009. Developed by Bungie, this new standalone expansion features a new hero and a new campaign. Check the press release for an overview of the Microsoft titles present at TGS 2008 and download the trailer.