It has been stated in one of the updates that Firefight mode will allow split-screen, and someone at E3 mentioned that way-points would be useful in the main campaign "if there is four people running around the city." So, it's obvious the main campaign will be co-operative, but split-screen co-op in the main game has not been mentioned. Will this be possible? Is the Xbox powerful enough to run two players in completely different parts of the city?