Hey, (First, I will say I've tried both using a launcher, and running through steam - I get different error messages for both ways) I've followed like, every step on every youtube video - and I still get the same error message when using the launcher. "You cannot play/edit this message this mission; it is dependable on downloadable content that has been deleted.chernarus" I heard a way to fix the chernarus thing, was the set my default world to Chernarus - which I have. (in the launcher) I've got all the files in the correct places (I'm sure) - and I have the latest DayZ files (downloaded yesterday again) - and I updated the beta again. I also tried reinstalling the battlecheat on both games (however, for ArmA2 it says that it's currently unavailable - I don't know what is up with that - but I did run the battlecheat thing before I loaded the games) - which that reminded me, I also ran both the games individually before putting the mod on. And I think I have the directories set correct (through the launcher) - I first tried it with the v4 launcher, but it didn't make sense to me. So I downloaded v1.4 to make things easier - My friend using this launcher has no problem. All the expansions come up on the left hand corner, so I know I've got some directories right. My parameter is "-mod=C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead;Expansion;ca;Expansion\beta;Expansion\beta\Expansion;@dayz" -nosplash -world=Chernarus Then, for my executable locations I have ArmA2: C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\ArmA2OA.exe ArmA2-OA C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\ArmA2OA.exe Underneath these parameters, it asks for my beta locations... I don't know what the beta is for ArmA2, so I left that blank, and put in "C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\Expansion\beta\arma2oa.exe" for my ArmA2 - OA beta. In the launcher, I also have "run beta" ticked, and, under the "Game Version" option, I have "ArmA2 - CO" set. I tick "Play Online" also. __ I have also tried running it through steam, setting my properties of ArmA2-OA to -mod=@dayz I have tried running ArmA2-OA as combined, and also singularly - and nada. When I try to join a server, I get "bad internet connection - host reject" - or something along those lines - even if my ping is 50 and my internet is fine. So, I sort of gave up with trying to get it to work through steam. ____ If you have any idea what could be wrong, please message me! If it'd be easier, I can give you my Skype (private message me - I don't want any shit about me being female k) - so I can share screen and show you what I've done. I bought ArmA2 like a week ago, and I still have yet to play DayZ! I am fanging to get on there!