So, after spending about 3 hours on the public beta, I can safetly say I wont be getting it.
If you thought camping was bad in MW2, you ain't seen nothing yet. You either die trying to take the objective from the 12 people camping it, die getting to the objective from the 30 snipers lying around it or die from the enemy who has miraclously made it around the map and is camping your spawn.
The lenghty re-spawn times, the time it actually takes to make to the objective, the fact that no one is using a mic and running in their squads as intended... the game is rubbish. I got to level 16, going for a leadership role at level 20, but decided it wasn't worth it, I'd rather be playing MW2.
And, if you somehow manage to take the first two objectives and get to C you only end up being sniped as you drop down on your parachute... it drives me crazy.
The only decent thing is that it takes a good 4 shots to down an enemy and the guns feel weighty and the recoil will put noobs off, but otherwise, not worth the money.