FIXED I HAVE FIXED IT! I HAVE CRAKCED IT, you need to enter steam and open armaII the normal one then load up any mission / boot camp / multip[layer on the map dayz is set on and when you go back to the game you will be able to load the map up and play. The reason it gets stuck on the final loading screen is that it cannot load the map required so loading the map up in arma II will hopefully fix this for you <3