I left my Co-op because there was only one or two other players helping with the shared orders. We never made our goal, even when I bought an hour of unlimited power for the co-op a couple of times. And now the game will not let me join any other co-op. I hit the 'Join' button, but nothing happens. Maybe if someone sent me an invite???? If you have an open spot in your active co-op, please let me know.