After temporarily pulling it to improve matchmaking, 343 Industries have returned the Halo 2: Anniversary Rumble playlist in Halo: The Master Chief Collection.
They made the choice as a result of community feedback, but explained that it is not in the same state fans remember it, at least not for now. Mainly, they are still working on existing issues with matchmaking, so this Rumble playlist comes with a few limitations.
To begin, the playlist is currently limited to game types that are not affected by these issues. The playlists is also currently set to 10 players, and is unranked. Once matchmaking issues have been resolved, they will add ranked play in, and set the limitation to eight players max.
