Halo 3 Legendary Map Pack question

[pacemakerguy]

if i bought that map pack what parts of Halo 3 online would i be able to play with that and the other map packs that were free?

 

[Nico0020]

Nearly all the playlists require all DLC (finally) and they are staying that way according to bungie.

Ranked FFA will never require any DLC due to achievements.
Off the top of my head I know unranked team slayer doesn't require any DLC, nor does multi-team. but any of the packs you have can show up in those playlists if others have them.

here is the list of playlists and what they require.
http://www.bungie.net/online/playlists.aspx?mode=1

 

[pacemakerguy]

thats so stupid they make u buy the maps

 

[GuardianE]

I'm going to assume that you have ODST, since you created a thread about it.

The Halo 3 Multiplayer disc with ODST comes with every mappack already.