Okay, one thing I really dislike about playing Halo is when a group of friends that play hard-core fill up the enemy team and my spouse and myself are with a random bunch of players. We both just want to relax and play Big Team Battle with the vehicles, but the enemy team just takes all the good weapons and spawn-camp us.
So my suggestion is that when say, eight people group up with each other, they’ll only be matched with another group of eight (or maybe a group of five). Because when you go against groups like these and have random teammates, Halo just isn’t fun.