Mythic Map pack failure

Hey guys. Well earlier today I entered the 25-digit code for the Mythic Maps, and was prompted to download it. It successfully downloaded, and even gave the announcement checker saying "Halo 3 mythic map pack downloaded". About 30 minutes later, I went on Halo 3 and went into Custom Game lobby. After the loading screen stating "Retrieving Saved Game Files" finished, I searched for a Mythic Map to play on. To my surprise, neither of the maps are viewable, and when in the lobby for Team Mythic, it says I failed to load the content. I then check my memory, and find that the Mythic Map pack is under Halo 3, and perfectly viewable, with the three options of 'Move', 'Copy', and 'Delete'.

So I turn off the console. and start it back up. Same thing happens. I then shut if off, remove Hard drive, let it cool for 10 minutes, plug it back in, start console, and the same thing.

I haven't called 1-800-4-MY-XBOX for it seems like a simple fix, deeming the content is under Halo 3, just not playable.

If anyone can help me, suggest something, or even explain what they did after downloading the maps, it will be extremely appreciated. Thanks.

 

Oh my God. I think that's the problem. I haven't even thought of that, for I assumed it would sense it being different content, but it's understandable it deems it under the same category. I'll check that now, and if this works, I love you.

 

Thank God it is. He has seriously saved me unnecessary time, and has my gratitude. It worked!

Yep, it was the limit. I would've called them, but seeing the circumstance, it seemed faulty.

Anyway, thank you dearly Taritus. I don't even know how to thank or repay you.

Requesting Lock. Thanks to everyone who helped.