It's pretty obvious now, that the facehugger impregnanted the YAUTJA (Hish species, i.e. "The Predator").
God created the predator species, who breed humans through the ampule samples so they can hunt Homo sapiens sapiens for sport. After the Prometheus crew mess around with TecHishnology, the facehugger species is born, attacks the PILOT YAUTJA (Reponsible for transporting human seed across the universe to hunt), and melts into the predators face. As the rest of the metal jockey TRANSPORT SHIP turns into an organic and bone like form, the hugged pilot crashes the ship onto LV-426. The jockey "tube" is really the hugger tail attached to the Hish's face. The predalien is born and now, the remaining Yautja crew (Dall, Ripper, and Parckker), must team up with Noomi and Theron to defeat the new, xenomorph alien extraterrestrial species once and for all.