ive been having a few issues with vindicta recently, at first it was acting like the map didnt exist that we were playing even though they had it loaded, and now my mate says hes seeing the singleplayer mission end screen that shows up when you finish a campaign mission, thing is that we havn't changed any settings since we played about a week ago and all of a sudden he cant connect

any ideas as to whats happened here?

edit: he says hes not even seeing the vindicta loading screen thats supposed to show up when loading this