If you know they're aliens and who they work for, that's not "unidentified" anything. . . .
Actually, when I look at anyone's crude scenarios of the history of the world/mankind/the universe, even mine, I suspect it's gonna be "way off" and expect it to be "way out there". Not just with megahistory, but megascience and megatheology as well. Sci-Fi is only "reasonable" because we know the author is making it all up, ha ha. But serious lit and serious cosmologies are just whacked because, first of all, the authors are seriously deluded somehow in thinking they know what they're talking about, and they just don't see how they're "making it all up".
Mormons used to have a pretty concise explanation of it all, but since oh about a hundred years ago, or at least since Heber J. Grant and James E. Talmadge signed the LDS up with the WCC, the authorized world religion that will officially mesmerize and bedazzle the masses in the New World Order, it hasn't been tolerated by the authorities. Since the sixties, the LDS Church "correlation committee" has been carefully grooming the Church membership to follow the manuals in the classes and accept a sort of "living oracles" idea much like progressive lawyers have pushed "administrative law" under a "living Constitution" which only means what authorities say it means, and puts us all under progressive management imperatives, without recourse.
So, no kiddies, it's no longer fashionable or trendy to "out" the other religion as the work of the Devil, especially since the Catholics, Mormons, Muslims, Protestants and some other big players have signed up with the WCC. Under the newspeak, all religions are valid if they are what makes you feel good, just like the new math will smile at you-all no matter what the answer may be that you prefer. You should be validated at all costs. No one should contradict you or make you feel bad. You are the new God.