Gunner323

Couldn't get this to work unfortunately, followed all the steps in it, not sure why, think its a problem with acrlite

So whenever I attempt to reload a previous save in the ARMA 2 Operation Arrowhead campaign, I'm met with this error, " You cannot play/edit this mission; it is dependent on downloadable content that has been deleted.ca_missions_acr, woodland_acr, bootcamp_acr, mountains_acr." I'm able to start the mission fine, but if I die or try to revert to an earlier save this happens, any ideas on why this may be occurring? I've deleted and reinstalled the game twice and I don't have any mods installed.