Benjehboii 10 Posted July 22, 2014 So I already have a retail version of OA installed and a steam version of Arma 2 installed. I have redeemed the code for my OA copy but I don't want to reinstall the whole game and all my addons, Is it possible to preset the OA destination and then update my current copy through steam for the 1.63 patch? Share this post Link to post Share on other sites
sorophx 25 Posted July 30, 2014 no. but there is a way to get OA running in steam without downloading it. it involves getting Steam to create proper registry entries for its version of OA. then you just copy your retail OA version into the newly created OA Steam folder. check the game for integrity in Steam and you should be good to go Share this post Link to post Share on other sites