moving target (DayZ)

Hi I am a noob and had the exact same problems you are experiencing. This is how i fixed it. I assume that your Arma 2 and OP arrowhead are separate entities. You need to update Arma 2 to ver 1.10 then update Arrowhead to the lastest version 1.62. Get the updates from here. http://www.arma2.com...ly/game-updates I bought my game from Gamefly, i thought i had purchased combined operations, but it was infact Arma 2 and arrowhead as separate downloads, that is why you have to patch up both games separately to the lastest version. I had to download all the patches for each game as one would not install unless i had the previous patch installed etc. Another thing i did was copy the mod folder from Arma 2 into the arrowhead main folder.. But i did that before i patched the game and it made no difference. I got into dayz after i patched up the games. So if the mod folder made a difference or not i don't know. Hope that works for you as it did for me.