Hi. I bought a boxed version of OA and now I want the original ARMA2. Also, to make this easy, let's pretend I'm a Spanish major and have never seen a computer before. Should I just get a boxed version of ARMA2 and install or should I uninstall OA then start with ARMA2 installation first then OA. I don't want to put another hole in the dry wall due to frustration (btw, I have a wall dedicated for punching holes into...conveniently, it's called my punching wall of frustration).
Also, I have Steam, but after 15 minutes of reading it seems like I should avoid a boxed/Steam product combo much like anyone should avoid a truck stop hooker.
Cheers!