Prometheus:
God (Space Jockey).
Titans (Engineers).
Humans (Humans).
Eagle (Xenomorph).
Charlie:
"Because they made us"Elizabeth:
"And who made them?"Charlie:
"Well exactly. We'll never know."The Engineers rebelled against the Space Jockey in Paradise and stole the fire of creation (the black goo). Now at war with the SJ, they fled to LV-223 and attempted to reverse engineer a superweapon (just like all their other tech) in order to fight on equal ground with the SJ. That weapon is the Xeno (as seen in the mural), the perfect organism. They tried and tried to create the SJ Xeno but couldn't quite get it right. Their efforts destroyed them. Think about it this way: if a nation was using an advanced weapon against you then you would want to figure out how it works and develop your own.
Later, David arrives at Paradise and wipes-out the "Engineers" living there. They are the ones that didn't rebel against their God. They are smaller, unmodified, and primitive. They inhabit only this city as it is an Eden. They gathered in the court with the expectation of the arrival of their God, the SJ, as normal (hence scorpion docking ship). David manages to reverse engineer a version of the SJ Xeno much closer than what the Engineers achieved. It still doesn't have the biomechnaical elements but it's close. David is very proud of "his" creation. David obtains the 2000 colonist embryos and heads back to LV-223 for more of the black goo in order to conduct his experiments. He is trying to get closer to the SJ Xeno.
Alien - Awakening: The SJ returns to Paradise to find it in ruins. It manages to deduce the cause and pursue David back to LV-223. Earth also sends a dispatchment of Colonial Marines and Company investigators. Cue almighty clash between David's creations and the Colonial Marines. SJ turns up later (as the "big reveal") and curb stomps them all. The SJ takes the remaining eggs that David has formed, adds it's own touch and then heads off towards Earth. David/human hero/Deacon (did you forget about it) turns up to sabotage the SJ. It crashes on the nearby moon LV-426. Cut to decades later. We see Ash assigned to the Nostromo. Mission: "Top Secret - Science Officer's Eyes Only...Bring back life form. Priority One. All other considerations secondary. Crew expendable".
The End.
Everybody wins.
Plot holes closed:
- The mural.
- The confusion of the Fifield mutant, Deacon, Neomorph, Protomorph and their connection to the classic Xeno.
- The size difference between Prometheus "SJ" and Alien SJ.
- Aesthetic and size differences between Engineer spacecraft in Prometheus and the derelict in Alien.
- Tightens the prequels relationship to the Prometheus mythology (God, Titans, Man, punishing Eagle).
- David "creating" the Xeno.
- Narrative reason for LV-223 being a sister moon of LV-426.