you know he right it do has element of other games. now the question to u is this how much of those machanic/element do u think it has from most of top games out there to me it has the key machanic/element that make up those game, and if they use it right can be use to it fullest potential. halo no more original than cod, but what make it different is how they use element other game have and change it to make it unique.