


at the end of the trailer it says new hero, new campaign.



http://www.gametrailers.com/player/41060.html

looks pretty cool.



edit




It's as many hypothesized(myself included)
-- Halo 3 is getting an expansion pack starring a Master Chief-looking ODST Marine.
Entitled Halo 3 Recon, you'll be getting action in the form of both a single-player campaign and new multiplayer maps.
As Garnett said, think of it as Halo 3.5.
Not playing as the Master Chief isn't as jarring as it seems at first, or have you already forgotten about a little game called Halo 2? Look for Halo 3 Recon in fall 2009 and a trailer on GameVideos very soon.
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