I just bought Arma III last night on the summer sale, and while im downloading it, it just randomly stops at 1.3 Gbs saying UPDATE Required, ive tried to update my pc, steam and anything i could think of, its never done this before, i have a very powerful pc and idk what to do, ive looked up videos saying to make windows firewall allow steam service, i did and it still does not work, if some one could please help it would be greatly appreciated!