The full path to it should be something like:Ĭ:\Program Files (x86)\Steam\steamapps\common\arma 2 operation presumes you're using Steam and it's installed on drive C.
So just to recap, inside your Operation Arrowhead program folder, you should have a folder called with another folder inside called Addons and a file in that called loki_lost_key.pbo. Is there? And inside that Addons folder should be the loki_lost_key.pbo file. Inside that folder should be another folder called Addons.
You should have made a folder called something like Do you? Check to make sure the symbol is there. Presumably you've installed and been able to play our single player game already. But I can't help unless you tell me a bit more about what is going on.
I'm afraid that means you haven't done everything right.
