Wost idea in history. What if you get kicked. What if you get put in a game with an idle player, what if your team mate leaves and you are left 2 v 3. Etc...

They probably got error coded. You get a suspension for leaving, so most people won't do it willingly.

I rarely have had a teammate quit when freelancing trials. But then again, I’m usually top frag so my teammates have no reason to quit

What about the network problems? I’ve been kicked out of games due to getting either an error code or the servers reconfiguring and I end up getting a loss on my card with a suspension. Most of the time when others quit I have to clutch the match. I have had games where I’ve won with just me and one other person against a stacked team. Especially in freelance. Just last week I made a whole team quit and got hate mail saying I was cheating because it was a 2v3 all the way. But I believe if after you’ve quit 3 times in a day with the exception of being kicked due to errors, then you should be banned for a day. Halo 5 has this and I’ve seen people be banned for a week, including myself.