Incidentally, you may want to actually leave aiming deadzone on, even bump it up, and get used to it - it's actually a cool feature when you're comfortable with it. I know it's different from playing a shooter, where in order to aim at something your avatar needs to comically rotate their entire body on a pivot (so realistic!), but remember that Arma 2 and Day Z aren't really shooters. Shooters benefit from the added agility that gives you, but try circle-strafing someone in Arma 2 and see how far that gets you. Aiming deadzone ftw. Aiming deadzone can help you a lot when tracking moving targets, or when trying to stay hidden (gun moving slightly is far less noticeable than a man rotating in place). Mouse smoothing on the other hand? Kick that to the kerb, asap.
