Cheater or something else?

I was playing a game of swat on sword base. The game started off as a normal 4 vs 4, 4 accounts on my team plus 3 accounts on the other with 1 split screen guest. The game started off with a player on the other team getting the first kill. I then kill that person shortly afterwards. Right after that, it said he was booted. It also said one of the other players quit at the exact same time. The 2 left was the account holder with his guest. Looking from different positions in the, it never says (player) was betrayed or you betrayed (player). Both players that left were actually active in different areas. I made a recording and put it in my file share. Look for “cheater?” if you want to take a look.