steam or CALL RAD COMPUTERS 480 252 2114. I tried to install it with the desk it was a disaster everything I try did not work. So I paid steam to download it and paid rad computers,MARK BUSH to install the gray wolves improvements. I was not happy that I had to buy the -game I already have and paid rad computers . The game runs without a hitch . I'm on my third campaign and still alive. MARK BUSH get the game to run .my operating system is Windows 10.i I don't like steam monitoring my game time,