shakes

HI, thanks for the info on the verifying the files I did that on Arma2, Arma2 OA, and the BAF stuff and everything checked out fine I am still getting these messages about "downloadable content that has been deleted" specifically CAWheeled2_BTR and other CA things. I have no idea where these CA things came from. Would it maybe help if I just deleted the local content and reinstalled all the arma2 components?

Sorry ahead of time if this was the wrong place to ask, I purchased Arm2,OA and BAF through Steam, and have added no files or anything to the installation. Now it seems after 1.54 upgrade and BAF installthat I cant run many of the online multiplayer sessions like Benny's etc because they say I am missing downloadable content. THis occasionally happened with Arm2+OA saying I as missing chernarus for some reason, but now it really is saying I am missing several files. I never actually deleted anything from anywhere though. Is this a case of hunting down the relevant files on the net and installing them, or do I just uninstall and reinstall. Or possible wait as these are mod or server side bugs that havent been sorted due to the relative short period after the upgrade.