Need help - Halo 3 gamemodes won't work

Games Other Halo
1

Ok, so I want to play social big team on halo 3, and it said “All DLC required” I looked into it, and so I got:
Legendary Map Pack
Heroic Map Pack
Mythic Map Pack Mythic II Map pack
Cold Storage Map

After all that, it still says “All DLC required” and I cant play it. Did I seriously just waste like $20? I’m pissed off. What do I need to do to play social big team?

Edit: Ive also tried restarting halo, restarting xbox, and that hasnt worked either.

2

Depends on how long ago you tried it. Halo 3 servers are going down.