Halo should add a Pubg type playlist where teams of up to 4 or maybe 2 can drop into the war zone maps and scavenge for the various weapons on the map. Halo in my opinion is already the best game out there still but that would be amazing. That and a trials like game mode. Maybe certain amount of breakout wins grants you a pack of armor that can only be obtained by going “flawless”
The odds of that happening in Halo 5 are slim to none.
There are plenty of wishlist threads in the GD section that you can use for this though.