Upon launching ArmA 2 - Operation Arrowhead, Battle Eye tries to update itself but closes half-way, corrupting the installation (As far as others have theorized) But there is no fix around it, though there have been fixes in the past.

I've tried everything I can, every tutorial on the internet-
Uninstalling, Reinstalling, Manual Updating, Validating, Disabling my Anti-Virus, Reinstalling the Game, Giving Full Admin permissions (Full Access) to all BE/ArmA 2 .exe's... Nothing worked.

I can launch ArmA 2 - OA by itself, without BE Just Fine.
If I launch it with BE, It won't launch. {F31704}