I mean come on the games named halo, which is named from the halo rings, which were created for the sole purpose of killing the flood, so it's seriously about time we got a new halo with flood in it, and I mean a lot of flood. Like I'm talking flood firefights, flood forge maps, flood multiplayer with different types of flood armor to unlock, and of course a flood campaign. We need more with the grave mind, we just kinda forgot about him after halo 3 and hasn't heard anything from him since. The flood is an awesome part of halo and has been forgotten for too long, come on guys, bring back the flood!