Sure, I would buy Crysis 2 if you want the exact same game and nothing different. It's got your same perks, like steady aim and slight of hand, it's got your same kill streaks like the spy plane, air strike and attack helicopter (this is all true, they are
this similar). It's also got kill cams and the same general map design. If you like Call of Duty and want to pay for absolutely nothing new, updated, or changed, Crysis 2 is the game you want.