Dear 343i, though the last update for MCC on 26/11/14 has resolved some of our problems with MCC it hasn’t fixed them all. Personally for me matchmaking has improved it doesn’t take long for me to find a game. Though I have heard others are still experiencing problems. Problems I have experienced are with the Campaign and with a party. We completed Halo 3 Legendary (4 players) but have not been credited with the achievement, it also says we have only completed 77 percent of the campaign though there is a Legendary symbol showing for every level on the mission select screen? We have had numerous issues connecting and joining parties and games in MCC. Avatars are not unlocking even though the achievement or the criterion to open the avatar has been issued/met.One of the worst problems I have had playing Halo 2 solo on Legendary is my campaign progress within the level resetting, not saving the checkpoints for some reason not within a playlist but the standard campaign.
I do a weekly post on b.net asking if any other Halo players are experiencing issues with MCC, please see a link below to the forum, to see proof of the above.
http://www.bungie.net/en/Forum/Post/80879760/0/0
Thank you and I hope this is the last week I will need to post on b.net as everyone’s issues will be resolved in the next MCC update