So, with th combination of film theory, MD stream theories and lore drone theories I have made the ultimate theory
When the absolute solve hatchling during EP 4 appears it has an eye and it's breathing and it's been proposed by lore drone that the AS is an Alien virus so this creature is an Alien.
Also how would Uzi know how to make a lazer gun without human designs because she's just a teen and not that smart
So there must've been a war on c9 over the planet that humans won
Given the massive amount of oil in the series the planet must've been filled with it
Also the AS hatchling appears in a puddle of oil so the aliens probably feasted on oil to survive and with the humans wanting to take some it became a war.
Which explains how Uzi had the accessible knowledge to make a lazer gun