ok so honestly I think a flood game mode for Infinite would be super cool. You could have waves of flood attack you, and you could unlock new weapons as you go, or use reqs.
each wave could get harder, and the flood could get more health, damage, and better weapons. You could have like team survival or something like that or just imagine mowing down flood with a mantis. I think this would be pretty cool, do you?
Wrong forum 
Feel free to use the existing topics in the Halo Infinite forums, thanks