When ever I try to launch DayZ I get the error I have reinstalled and deleted DayZ, I've tried to copy my friends working version of DayZ but neither of those have worked. I've tried to verify data in steam, that didn't work. After that error happens the game kind of launches and then the error... ... shows up

Why would it give me a resource error then? I've downloaded it twice now to make sure it wasn't missing a file or anything. Still doesn't work.

It's the stand alone version in steam. Does it still require Arma 2? Side note: I did verify the integrity of Arma 2 and Arrowhead and still doesn't work.