It's pretty much assured that the .50 cal revolution will fall flat on it's face. They tried it before, didn't work. It's basically one company (Smart Parts) trying to shove this down everyone's throat. No other manufacturer's are on board.
And the asshat in the video, is a royal douche, and a shitty salesman. True milsim is in airsoft, always will be. Paintball is there for some additional fun on the weekends.