Mw3... weapon balance... what? Mw3 was boring because it was copy and pasted, nothing to do with weapon balance.
I'm not saying that's the only reason. MW3 sucked for far more reasons than just the bland weapons.
I don't think you can contribute the games success to a weapon considering OP weapons make the majority of us rage so bad, unless you're the dbag using the OP weapon (not saying YOU are, just you as in the community in general) then the games fun factor is not determined by a few OP weapons.
Always up for a 1v1, friendly or competitive. Gamertag - HyPe xKiwi