I’ve purchased all Halo: Reach DLC as of late 2013 and have yet to play on them during matchmaking. Personally I don’t see why they’ve removed Anniversary BTB, and
other playlists to utilize DLC maps… As of Sept. 16/14 Gold members got Halo: Reach for free, and so, makes it impossible to play on DLC maps, as they are included in the
regular playlists. So to wrap it up, I’m just asking for a playlist to exclusively use DLC maps for 4v4, 8v8, I don’t care. I’d just like to use what I’ve paid for…
Yeah, I’d like to see a dlc playlist too. While we can exchange gamertags, our schedules may be different, and we may not have time to meet up and play at specific times. It’s must easier to have a dlc playlist readily available at all times.
Sadly, updates are only once per minute nth from what I read a couple of minutes Jutes ago, but I knew the game had small support and updates since all the new games came out.its been a while since they removed the two DLC-only playlists. 
I’m all for a DLC playlist, though I doubt 343 will add one.
It would be nice if they for once did anything useful for the people who have purchased the DLC maps. They pulled off the same Blam with Halo 4. Tease all the new DLC maps, which looked pretty cool, had a playlist running for perhaps one month probably less and then bam let´s integrate the maps into the regular playlists Annnnd they´re gone. It´s just gone.
I don´t get why they just make the map packs free to download if adding a new playlist is too much to ask (which it really isn’t). I mean if you´re going to give away the game for free to Xbox Live Gold members why not include the map packs. It would be a nice gesture to the people who still prefer Reach over all the new Halo-Fall: Future Warfare Blam.