Halo Wars is taking effect on several planets from my understanding, and from what I caught at E3 one of the developers flat out said there was no flood, it was merely the dawn of the War between Humans and Covenant, maybe the URF will make an appearance, maybe the Heretics? Thing is we don't know and won't know until the day it comes out, or a week or two before. Besides I don't want flood, it would ruin the story because from my understanding we didn't know anything about the flood until we landed on Installation 04.
Congratuations Commander Scry, I hereby demote you to Private. Then promote you back to Commander, giving you the Honorary 'Edit your damn posts, n00b' Award for learning that double posting is for n00bs, suck-ups and wannabes. Welcome to the 405th, now get to F$#%ing work. (Cracks Whip)