The new trailer introduces Noble Team, a squad of Spartan soldiers.
Halo: Reach is said to chart the story of Noble Team in their stand to defend the planet Reach against the Covenant.
A multiplayer beta will begin in spring 2010.
The title will be released in late 2010.
Microsoft in Sept. released Halo 3: ODST, a stand-alone expansion that includes co-op multiplayer functionality.
Microsoft in Nov. began sale of the new Xbox 360 250GB Modern Warfare 2 Limited Edition SKU.
It Sept., it began sale of the Xbox 360 Elite 2009 Holiday Bundle with two game titles at $299.99.
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