Good action flick...
Good movie to watch if you want to see someone getting their asses kicked and bullets flying that actually hit their targets (but not that NYC Police, real life how they hit their targets).
It's an action movie. It's not meant to be realistic (again look up the recent shooting in NYC involving the police). Real shoot outs on the movie screen would last probably 2 minutes once guns are in hands and drawn. That's it, outcome decided.
Jason Stratham kicks ass. And he does it himself a lot of times, not the stand in.