Been playing ArmA since I was a kid with Operation Flashpoint and every game ever since. By far one of my favorite game series. Its hard to get into if you're not a veteran, especially learning all the daunting list of controls. But once you get into it, its tons of fun. Try also joining a community on Arma, especially ones that host massive 50v50 events. Believe me you won't see anything like it on the market