I am not sure where to post bugs relating to campaign but here I go. Last night I completed the campaign on co-op with two levels having minor connection issues. After being dropped from those games I just clicked to resume and both picked up right where we left off. I finish the last level but only the Achievement for beating mission 15 pops. The rest of the campaign missons say I’m at 93% completion. If you look at my campaign record it shows 15/15 complete on legendary. I really don’t know what to do at this point. I would rather not do legendary campaign again.