Download it FREE from the XBOX LIVE Marketplace.
The Heroic Map Pack for Halo 3 is now free. You can download it via xbox live marketplace.
i had same problem you jest redownload heroic map pack and it should work.
If you have xbox live go to the marketplace,find halo 3. Then download the heroic map pack.
Download the Heroic Map pack from the marketplace for free.
You can't unlock items, you have to download map packs off of Xbox Live. Like the Heroic map pack, the Legendary map pack and the Mythic map pack.
you probaly need legendary, cold storage and/or the heroic map pack.
No, it must be downloaded to your HDD from the Xbox Live Marketplace.
muythic map pack. that comes with HALO 3: ODST
In order to unlock all of the halo 3 maps you must purchase them from the halo 3 marketplace... heroic map pack is free, cold storage is free, and legendary map pack is about 600 live points...
There are several map packs. There is the Mythic map pack, Heroic, Legendary, and Mythic part 2. The Heroic map pack is free to download while the other map packs are from 200 ms points - 800. There is also a bonus map called cold storage which is also free! - Henry
You have to buy it from the Xbox market place. It should be the heroic map pack. You must have Xbox live.
you need to download the heroic map pack with 3 maps.......... foundry, rats nest, and standoff and there is the legendary map pack with 3 maps also..........avalanche, ghost town and blackout and the new mythic map pack with 3 maps.........orbital,sandbox and assembelly*