- Obi Wan Stevobi
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- Exalted Mythic Member
You might have to use the license transfer tool. Map purchases are tied to two things, the original console that bought them, and the gamertag that bought them. If you have a new console and a new tag, they probably won't work until you use the license transfer tool to move all your purchases to the new box/account.
See here
If you have purchased them on your box, then no, he will not have to buy them.
[Edited on 08.19.2010 8:30 AM PDT]