COWarMod comes as a RAR file with three folders inside:
@COWarMod
userconfig
Keys
You can ignore the "Keys" folder as you're not running a server. You've obviously copied the "@COWarMod" folder over, but you do also need to merge the "userconfig" folder with the one that's in your Operation Arrowhead folder.
I don't know how you could have downloaded COWarMod without the "userconfig" folder as it's part of the RAR.
http://www.armaholic.com/page.php?id=14699Sorry for the late reply, I've been running a music festival for the last eight days and I'm exhausted