I have left maybe 2 games since I started playing since release of halo MCC on pc, but yesterday when I presume my ban was issued I didn’t even leave a game. I was on the title screen when I closed the game. The only possible thing I can source it to is the fact every time I alt-tab and shut down my PC the anti-cheat says something like “game violation” as I am logging off. This is absurd all I did was alt-tab instead of clicking the quit button. I have absolutely not clue why I was banned.
Please use the ban thread pinned at the top of the forums for any queries on matchmaking bans