Both my boys want a new xbox 360 this xmas as they one they have they've had for over 3 years and basically its knackered and they dont want an xbox one,do i have to transfer data from the old hdd to new or is the data etc saved anywhere on xbox live?i know it want have add ons saved like extra maps for call of duty but if they signed in on their account wouldnt it just carry on for the extra months on live and be able to re-download the maps they have paid for......