Why didn’t I think of it before. 343i your missing out on a huge opportunity here. Flood in Warzone would be HUGE! Have 2-4 spartans start out as the infected and the rest unaffected , have AI flood arrive as bosses as well as the covenant and prometheans. Red or Blue wins by surviving and having the most captured bases, flood wins by eliminating red and blue. This can make red and blue work together to try and survivor or even betray one an other at the right opportunity.
Not having the flood is a mistake.