Best Playlist to Find Castle Maps?

I’m trying to grind out my last few H4 achievements, and need to find some Castle Map Pack maps in matchmaking. Any recommendations for which playlists are most likely to have a Castle map?

Problem isn’t the playlist, but more of the people you get matched with. If they don’t have the DLC downloaded, you will never get a map from the Castle DLC.

The DLC is free, but players still haven’t downloaded it for some reason. They need to release a forced download for Halo 4 that requires the player to download all DLC.