Do not have permitted to play in multiple game

I’ve finish a round of Warzone.
And when the other team got the win(just hear the voice said “Lay down your weapon…"), I press Option button on my controller try to see the Carnage Report.
All of a sudden, the screen turns red and then I’ve lost connection with the server.
After the message, I found out that I’ve been banned for all type of multiple game play.
There is a warning message: At least one player in your fireteam is not permitted to play multiplayer games.
I am extremely sure no suicides, no team kills in my last game.
I just wondering what’s the hell happened and why!!!

说实话,对HALO 5的服务器,如果不让我骂脏话我真是没什么可说的。