I have just had the exact same problem the previous poster to me mentioned. I am on PS4, went to revisit my Campaign at Kunlun Mountains, and everything is gone now. The data on Battlelog shows I have made it that far to that mission, however the saved data on my PS4 is no longer present. (Don't mean to intrude on PS3 forum)
Same as me! Played few a few times (ps4) only to have all progress lost.
What a joke, how can you release a game that can not even keep a single player save!
My medals and top scores are on battlelog but everything else is gone.
Dice need to do somehting about this soon! I get multiplayer is violtile enviornment that may have some issues at first but you can't even release a game that doesn't delete your single player progress?
Hope to hear an update soon.
