In my opinion this is the number one issue with Halo MCC’s matchmaking system and it was included in the patch notes that it would be fixed. This has happened to me and people I know multiple times since the patch was released so it obviously was not fixed. The ability for someone to press start and end the game for everyone or boot certain players from a matchmaking game is completely unacceptable and a much larger issue than say uneven teams.
I haven’t heard 343 say anything about this issue since the patch released, please do not allow them to just sweep this issue under the already dusty rug.