mindrape

Hi Guys, I tried to play Arma2OA after a long Time. I downloaded it via Steam, now if i start the Game "Arma2oA_BE.exe" i'll get the error " Failed to install BattlEye Service (4, 41d). " ...Even if i run it as an administrator. I've already searched for a solution, but all this fixes are from 2012 or earlier. I hope somebody can help me. Thanks