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Halo 3 Multiplayer Beta
Bungie tested Halo 2 with a much ballyhooed Microsoft internal beta program. Many of the suggestions for tweaks and adjustments to Halo 2 multiplayer came from more than a thousand MS employees trying out Halo 2 on a set of private servers. For Halo 3, Bungie is expanding its testing circle significantly. Next spring, Bungie opens the Halo 3 multiplayer beta to Xbox 360 gamers, allowing fans to try out an unspecified number of maps and game modes and to help Bungie make the strongest online game possible.
Also there will be new maps for Halo 2 available at the same time as the beta and only available for dl through the 360.