For me, the CoD franchise hit their sweet spot in terms of pretty much everything with Modern Warfare 2. For those that have played the beta, how does this game compare with the previous games? Is hit detection as good? Better? How's the bullet damage (does it take fewer shots to take down an opponent than it did in previous games?)? Is there any sort of dominating gun such as the UMP in MW2? Does it have a smoother flow than previous games?