My current 360 has been having some video issues so I'm gonna be sending it for repairs. My fiance decided to buy another system to use and when the other gets back it would be backup. The new system was purchased used. Well, I've been playing Halo on it since last night and all is well. I logged her account in to get the 7 on 7 achievement and it said she didn't have the maps for squad battle. I went to custom games and none of the map packs show up. I went to the dashboard and she can't use any of the premium themes that were downloaded. She has never had a problem using themes or the map packs before. I called xbox support and the guy said it's because the dlc was linked to the other system...but then why can I still use it? Another thing is what if instead of repairing my system they send another one to me instead, she would be right back in the same spot. The guy said I can transfer the license agreement to the new system but I wouldn't be able to transfer it again for a year. Is there anybody here that can help me out? Her favorite playlist is Team Swat and she can't play it anymore.
On your Xbox 360 Dashboard, go to your Acount Management, then select Download History. Here you will see everything that was ever downloaded to your account and you can download it again. I hope this helps.