I've done a little bit of reasearch myself and understand that for Day Z to work you need both Arma 2 and Operation arrowhead since Day z uses some files from Arma 2 and runs through Operation arrowhead. Not sure if that's true but it's what I found. I'm interested in getting arma 2 but i'm not completely sold on spending the extra 10 dollars for both. So here come some questions. If I try to run day z without Arma 2 what happens? Do I need to have both games running or does Day z go inside and get the files while you're playing through the other game? Is Arma 2 all that different from arrow head, or is it simply a upgrade from Arma 2? In which ways? Is it still fun just to try and survive without having to kill other humans? Thanks for your time.
