- last post: 01.01.0001 12:00 AM PDT
*Bangs head against wall*
Look, there is NO evidence that the excised Covenant are allied with the humans, and all the evidence and common sense against it. First, we have not heard from Bungie that we are allied with the Covenant. That settles the debate right there. Until Bungie says it exists, it doesn't exist.
And don't give me "but the Arbiter and Johnson..." crap. That was a temporary alliance, forged out of desperation to keep the hell monkey from making the universe go boom. For all we know, Arby will try to kill Johnson as soon as they are off the ring, if even that.
The allied elites in the fight against Tartarus are all high-ranking elites. This is very important; older elites, if they have a lifespan like humans, were already around and possibly even adults before the start of the Human v Covenant war. I base this estimate on that Elites advance based on how many humans they have killed, and it takes time to gather the thousands of kills that I read took to gain the privilege of wearing gold armor. They haven't been subjected to the propaganda their whole lives, as the young'uns have. I'll get back to that in a minute. As they lived through a period before anti-human propaganda, the "human=evil" line may not be ingrained in their heads fully. Or, they simply see the firing of Halo as a more pressing matter, so they put aside the feud, ignoring the gaping plot hole that is the fact that there was no time for the Arbiter to brief these elites, let alone time for them to digest that, accept it, then high-tail it over to the control room.
On to the juicy bits. As I mentioned earlier, young elites (again, this is all assuming that the Elite lifespan is similar to humans) have lived their entire lives in propaganda. This goes for Grunts and Hunters as well. They may simply be unable to accept to idea of siding with humanity for any reason. (I can't use the analogy I'd like to, as it may be a blacklistable offense, so you're on your own there) So, these elites (and Grunts and Hunters) are more likely to simply go rogue and fight both the Prophet/Brute led Covenant and the humans at the same time.