Im liking it, Needs a different play style to COD4 though, but there certainly are no pinch points on the 3 beta maps like the COD4 maps, they are also very big. It's a lot harder to see people, often only muzzle flash gives them away. Feels more tactical
Dogs are a pain if you dont have a machine gun, and the games shot registering isn't as crisp as 4. However it is good, the new map styles certainly offer something new.
We have been playing teamdeath match too, which I don't really like that much. Search and destroy etc should be very good (if they implement it that is)
They still have the War mode like they had on COD3.
Water effects are ncie too, grenades make a nice big ripple when they go off in the water.