Though the Halo Collection may be a dream come true for veteran fans of the franchise, the multiplayer matchmaking problems still have not been resolved completely, but 343 Industries is working on it and other issues.
According to two posts on the Halo Waypoint website, a new content update has been released recently today to fix issues related to campaign UI and some matchmaking and party issues.
Among the fixes already released in today’s updates (as seen on the most recent post):
- Fixed a variety of issues that caused players within the same Matchmaking party to be placed on different teams. In rare cases, this issue may still occur, and we are investigating additional fixes.
- Fixed a Matchmaking issue with behind the scenes team skill matching, allowing team skill matching to be more accurate in both ranked and unranked playlists.
- Fixed an issue where the campaign HUD did not reset from level to level with scoring or time HUD enabled. This will clear out the full visualization of level segments, which was previously not reset.
- Fixed a variety of issues with campaign leaderboards and scoring HUD, so now when scores are posted, score, kills, time, deaths, and penalties will be reported correctly for new mission leaderboard entries. We are still working on additional fixes for playlist leaderboard entries.
- Fixed an issue with competitive HUD time split. Now, when players have competitive time HUDs on with a rival set, they will see per-segment split times for whether they are ahead or behind at each segment.
These fixes will not solve yet the matchmaking performance until a planned update gets released sometime next week. Due to this important issue, the Halo Championship Series has been postponed until sometime next week.
[Source]: Halo Waypoint: Halo: The Master Chief Collection: Content Update 11-14-14 & Bug Investigation.