I just wanted to know if anyone else has had this problem before. Yesterday I completed all missions with a character and saved then turned off my 360 to go gym. Anyway came back switched it on and it said nothing as in there was no data anyway I played it all yesterday to get back my progress and today completed another character and half way with another with most of my missions being ' A' or ' S' . However again I went to continue my game and it' s all gone....