I have, it's a Fight Club plot, sorry to give it away, but you figure that out pretty quickly. Doesn't make it any less fine, non stop action. Everyone buys it for the MP tho. I still find it surprising FPS sell so well on consoles, but I guess it's a lot cheaper to buy a $300 Xbox once, than a $300 video card every year. I just can't get the hang of using the controller for FPS.