Before anybody says anything regarding the post that says what to do with crashes, I don't have the files asked (arma2oa.mdmp and arma2oa.bidmp) in my directory, so I'm at a loss.
3 days ago I purchased ARMA 2 Combined ops, via Steam. And it has been the most frustrating 3 days of my life to try and get them to work. When both the games finished installing, Operation Arrowhead worked fine, UNTIL I tried Multiplayer, where it crashed, right when I clicked it. I must have tried it ten times and it crashed every time. Then I tried ARMA 2, alone. It gave me the bad serial number error and crashed. Four hours of re installing both of them later, ARMA 2 worked entirely, but Operation Arrowhead gave me the "no entry for shadow" error. I've re installed Operation Arrowhead 2 times since then, and now it works to the point it did in the first place, crashing whenever Multiplayer is initiated. I really want to get this working.
Keep mind;
I own it on steam
Singleplayer works fine
There are no mods installed
