I just picked it up on steam buying the game gives you beta access.
Looks pretty good if You're into the military sim, giant open world thing with tons of gear and vehicles, even UAV's, chris.
shitty pc's need not apply . AND YES DAY Z FOR ARMA 3 is already in the works.
Arma 3 | Official Website
I bought this a while ago when it was still in Alpha, with my shitty Laptop. It seemed like it would be fun with a better pc though.