"Halo 4 servers are unavaliable"

I keep getting this error when I attempt to play War Games. I can play, but it says its set to the default playlists, and there only appears to be about 1000-2000 people online playing.

Are the new playlists being added? My friends are able to play, but last night my challenges reset an hour before theirs, so maybe im in an area that is being updated and they arent?

Any help is appreciated.