Current MCC playlists and matchmaking

Hey I was considering buying a XB1 pretty much exclusively to play halo (MCC + 5) and MCC is a large part of what excited me. Before I make the plunge, I was wondering if there is a list of the current playlists somewhere, including which games are included in each. I was also wondering what you guys had to say about the general matchmaking/playlist system and how long it takes to find a game, etc.
Also as a side note, does MCC have ranked playlists like halo 3 used to?

1- There are playlists from Rumble Pit, Doubles, TS, THC, T Snipers, Action Sack, Zombies, BTB, H1, 2, 2A, 3, and 4.

2- I have no issues finding matches across BTB and TS.

3- It’s the standard H2 ranking system of 1-50 for ranked playlists. Each ranked playlist has its own rank.

BE WARNED: The matchmaking system in the H2 and H3 systems is not the original matchmaking system. Party matching is disabled, and there are no skill difference thresholds. As a result, it is possible for a player of any rank to get matched up against players of any other rank. For example, a level 6 can get matched against level 30s or level 40s.