M$ came up with a whole bunch of new precautions for xbox live that is able to detect if an xbox is modded. It looks to see if the harddrive is still the standard 8 gb and that it is running the proper operating system. Thus almost all xboxes... even ones with chips that turn off were baned with live. M$ wanted to get back at those french playing fools... Anyway the game itself is awesome. I have already beat it once.