Answers to questions from thread 24715: *Which version of the game did you purchase? I bought a digital version of ArmA II and ArmA II Operation Arrowhead separately in store. (Non-Steam) *Are you running an Arma 2 OA beta patch? Yes and its version is 94444 *Which method are you using to launch the game? I didn't use any programs. I downloaded and copied all DayZ files to my ArmA II OA installation directory/@DayZ/Addons and added "-beta=Expansion\beta;Expansion\beta\Expansion -nosplash -skipIntro -mod=@DayZ" at the end of shortcut's target file directory. I was also using Kodabar's guide: http://kodabar.blogspot.com/2012/05/how-to-install-dayz-with-arma-2-free.html *What is the Error/Problem you're having? I can't launch my ArmA II as Combined Operations. I read somewhere that I should launch my OA as CO. Where is that option? Also when I launch my OA Beta Patch .exe file I get error "Addon 'dayz_code' requires addon 'CABuildingParts'", but I can continue so I press OK. When main menu appears I get another notification: No entry 'bin config.bin/cfgvehicles/citizen1.scope', but I press continue anyway. I see @DayZ/Expansion/Beta in the upper right corner, so it means its properly installed. When I get to server browser, join any server i instantly get kicked with message: You Cannot Play/Edit this mission; it is Dependent on Downloadable Content it has been deleted.chernarus. One more thing: I couldn't update ArmA II (OA & BattlEye are updated). I just kept getting errors that my ArmA II isn't installed on computer or installation is corrupted. Games versions are: AII - 1.10.88665, OA - 1.60.94444 *Your PC specs: Intel Core i5-2310 CPU @ 2.90GHz 8GB RAM Nvidia GeForce GTX 560Ti *Your Operating System: Windows 7 x64 Home Premium And yes, I looked at A LOT of threads. None of them helped me. I think I gave you guys every possible information to help me, so I'm waiting for response.