when i tried to play it for the second time since i got it it didnt get my last time i played checkpoint thing. like i go to the home page or the main menu and it says start solo campaign when i already played it yesterday. then i go to campaign and it has my last saved checkpoint. do i need to go to campaign or do i need to start over again? plz help. also i changed my tag name or something like that yesterday and it still is on there. so it had to save or something.