ceolan_mcguire

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.

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