- last post: 01.01.0001 12:00 AM PDT
The Flood can be in multiplayer and i will tell you how.
When you first fight the flood you will learn that they found shields so they are harder to kill just like the aliens...
While you are on Earth the Flood found shielding and they are now shielded so they are just like the covenant and then they come to earth...so yeah
But i doubt it