Hello,
I have been trying to complete the multiplayer wins achievements in Halo: The MCC, aka Sharpshooter, In It To Win It, Battle Hardened and so on, but recently, I have stopped being awarded wins when playing matchmaking even when I do win the match. Has anyone else come across this problem? Thanks.
Yes this seems to be currently a problem for the entire community. Has been going on for the past week or so. There are a few other posts of a similar nature. Hopefully something gets resolved soon. Even though it doesn’t fix the problem I am happy that this issue wasn’t just me. I’ve been turning my Xbox off and on and trying different things to resolve it thinking it was something local to my system.
Same problem 
Having the same problem. Played for a few hours yesterday and won quite a few games of swat and checked today that they didnt count. I got sharpshooter a few days ago but my progress is stuck at 150 wins
This has been a problem aswell am stuck on 319 wins have tried all sorts of stuff to fix it nothing helped i hope this is fixed soon