ceolan_mcguire 10 Posted June 7, 2013 When i open Arma 2: OA it gives me this error message: Failed to load file "C:\Program Files (x86)\Steam\steamapps\common\ARMA 2 Operation arrowhead\BAF\addons\air_d_baf.pbo" - decryption of headers failed When i try to join a server it puts me in the game lobby but then moves me back to the main menu of arma. Share this post Link to post Share on other sites
MissileMoose 10 Posted June 7, 2013 In future, please be more descriptive with your post title. Navigate to your Steam library and validate your games files for BAF, post back and let us know how you get on. Share this post Link to post Share on other sites
ceolan_mcguire 10 Posted June 7, 2013 Sorry and i got it fixed by the way. The only way i could do i was by installing everything to do with arma 2 and reinstalling again. If i reinstall british armed forces or private military company dlc it stops the game from working Share this post Link to post Share on other sites
MissileMoose 10 Posted June 8, 2013 I'm sure I had a similar problem when installing with Steam. Install everything including BAF and PMC, then run each specific package once before playing with them together. Share this post Link to post Share on other sites
