Technically there is no rip off of any sort at all. And I've said this beofre. Its bungie and activision working so hard here so inevitably there is going to be aspects of obviously both halo and cod. Besides that's what bungie wants is a kind of familiar feel so new gamers can pick up the controller for destiny as well as us vets. Plus not a.single person can say there aren't certain things in halo that could make other games better correct? Just saying.