Xbox Owners know this game well.
First, I got to say that Xbox Live owners only should get this game because of it's multiplayer. Because the single-player campaign is finish within a day. If you want a challenge try the highest difficulty mode, you'll have quite a challenge trust me. I was so disappointed by this game at first because the story doesn't follow exactly after Halo is destroyed and you never get to go to Earth. When I watched the ending I thought it was a joke, because the credits showed up after 10 hours of gameplay. I was gonna give a 5 to this game but the highly addictive multiplayer rules. So Xbox Live owners should get this game. If you don't have Xbox Live you should just get it in a videoclub for one day.