I think when you have a few thousand rounds of 9MM parabellum under your belt in real life at a range in anything ( I own 9MM Ruger police carbines , Marlin camp 9's , and a few import carbines in this round) , then you would see the hilarity in what you write. Can it be done? Yes. Can it be done over and over again at even a 50% rate like you suggest? Not a chance in hell. Can it be done moving or even standing all out of breath like the game suggests in a 40's tech mass produced stamped reciever. No freaking way, sorry...just no.Will never happen. I have 25 +years of armory, gunsmithing, tool making, reloading, and shooting experience. And I own , have owned, or at least spent time on the range with all of the guns ingame and then some. Sorry, not going to happen.
Please dont compare it to a paintball gun at 50M. Not even remotely the same animal.