Master Chief fighting aliens and Predators... cool. What about Flood Aliens, a Face Hugger got a Flood, "HOLY!!!", lol, maybe instead of the chatterbox with a mission to make life miserable, AKA: 343 Guilty Spark, Master Chief would kill a Pred and the Pred might activate a self-destruct witch will destroy the HALO. Nice thinking Cory, note it would be difficult to put the aliens in the storyline, the preds could have just flown there but, how did the aliens get there?
~~~~~Feet First Into HELL~~~~~