I think when your infected in Infection you should have the Elite Flood Models for Elites, and when the Spartans are, they should have the marine but the spartan helmet is still on, and the pants is the spartan-ish pants, and all the stuff that spartans got.
And in campaign (i dont know if its a glitch or what) but when you kill a white/red/black, elite in flood form the pieces turns blue... very annoying
[Edited on 02.23.2008 5:34 AM PST]