SKK is a transgenic organism containing extraterrestrial genetic material And given what we know so far about SKK, I think they’ve given away what he really is. He is no result of a super soldier program, but a disposable biological weapon created specifically to take down the rapture queen or any other hostile extraterrestrial nano-machine ascended entity. We already know that the vapaus made from his blood is to neutralize nano-machines, but the latent delayed activation of his regenerative powers and triggering by activation of a “queen” really tips it off. Vapaus is the mechanism of neutralization of nano-machines, cell-division at an accelerated rate (which is also confers regeneration) is the delivery and proliferation method, while activation of a queen is the trigger. Once SKK gets in close enough proximity to a recognized queen, his body will start undergoing uncontrolled and exponential mitotic cell-division in order to produce as much vaupas as physically possible to eliminate a queen. He will fulfil the role of the poison in he chalice. He will become a cancer that devours all not from this earth, the process in which he is not likely intended to survive.