I know this feature will never apear in halo 5 anymore but i gone talk anyway about this.
bevor a warzone fire fight(wzff) match starts, we should be able to vote what we want to fight
The game would display 3 options covenant, mixed, prometheans.
The more people vote for one thing they get it.
If covenant wins the vote, all waves will be covenant, the rest explains itself i guess.
Then it would be mix
if 4 players vote for covi and 4 for prometheans, that it would be mixed
the vote option mixed is for those who dont care what the wanne fight.
Basicly you can make it that if the players vote for 60% covi, 3 round will be covis.
The results would be rounded, like 78%=80%