Once you get used to the Arma engine and other 'alpha mod' mechanics you need to learn to fully utilize day z, you should never touch a recruit server again. Peripheral dots and nameplates make it so if you don't successfully snipe someone with a zero-able rifle, you should uninstall. Next time do as Zymi said, line up the head shot, that way if he/she is an Alt+F4 pussy it will not matter, they're still dead as hell.