- last post: 01.01.0001 12:00 AM PDT
Seems very, very likely. First, because they were probably on the Ascendant Justice. Whether they were on the Longsword or from Halo when the Ascendant Justice left the first time (possible since we have no idea where the Ascendant Justice was before the blast on the ring). And if it was on the Ascendant Justice, then it probably got on the Gettysburg. And from what we've seen from Dietz novel The Flood and the level 343 Guilty Spark, the flood have a very good knack for hiding and popping out when you least suspect it. What's keeping them from simply being stowaways on either ship (Besides, as time progresses, the flood get smarter and seem to gain intelligent. Maybe by now they can rationalize and are "stalking their pray, waiting for it to get to Earth or somewhere else where there are lots of hosts...Before you blast that, remember that the flood do get smarter as time goes on. The game showed us that much.)
Now, what was I saying...Oh, yeah!
The other reason I think the Flood will be on Earth is because of it's exiting story value. Bungie said the game would be full of twists and jaw dropping exiting stuff. What could be more terrible/cool/exciting to see than the flood on Earth. Besides, it's a lot more pulse throbbing than the alternative: fighting the flood on another Halo while Earth is safe. That's pretty mudune, especially compared to the flood on Earth and your fighting a losing battle just up until the end. And besides, how are you going to fight the flood on another Halo? All that you'd have is infection form to fry, since I doubt neither humans or Covenant would be stupid enough to release that again (unless there is a new speices for infecting on another Halo. That would be interesting, too.)