StrikerGER

I have ArmA 2 Retail, but I own OA and BAF on Steam. So I downloaded the actual beta patch to see if the warping, lagging etc. has gone. Mostly yes, great work so far. But the only thing which I wonder is, how do I start the Beta patch with my normal ArmA 2 (Which I need for the SEAL Team 6 DEVGRU Mod) Thanks for respondings