Have an Invasion type mode in Warzone, 12 v 12 but the elites get AI buddies, like grunts jackals and even hunters The REQ system would work differently in a way as when the elites kill spartans or capture a base, they get awarded with vehicle, weapon or boss AI drops (like hunters).
There would be a standard loadout for the elites being the storm rifle and carbine while spartans spawn with AR BR starts.
The goal would for the humans to defend their bases from capture of the covenant forces and the elites would have the goal of trying to capture all three bases.
Idk food for thought I guess.