(adsbygoogle = window.adsbygoogle || []).push({}); I logged into my account today, and bought the First Strike map pack and downloaded it until it gets to 99% then it says that the download failed. :/ I have tried many times and even restarted my xbox 360, still no luck.
Anybody help me please?

Contact microsoft, or am I right in thinking you can log on to your GT account on your pc and download it to that and then transfer?

It's when I log into my account on the PC it comes up as invalid attempts. Too many attempts have been made, but I only tried the once. So I think it has probably been hacked or something. :/

Then contact them over the phone.

Contact them over the phone. This might be an error in the system due to the amount of downloads the map pack is getting. You should try later on tonight or just go ahead and contact them over the phone.

Still a problem. I rang MS up, but they said they didn't know what the problem was. Any more help?

My mate had the same problem with this on his xbox. The problem was is that he bought the game in the UK... But he lives in Spain. For some strange reason they've decided to region control the map pack downloads.
My mate had to set up a UK VPN to bypass the problem.