im so damn tired of these stupid theories that MC is going back in time to stop the events of Reach or whatever and saying that da planet is similar and its NOT. If you hear the trailer, the events come as a surprise and the teaser is to make you wonder what the game will be and in NO WAY SHAPE OR FORM does it indicate time travel so for everyone making these stupid theories, go on ODST forum or Halo 3 forum cuz really no one wants to hear a freakin page and a half full of a theory dat isnt true