Hey! I'm gonna tell you about what makes different alien breeds, like what is the result from different facehuggers on different creatures. And, I'll tell you about some of my own ideas.
Facehugger + Human = Warrior/Soldier
Facehugger + Human could also = Drone/Lurker
Facehugger + Animal (maybe a dog) = Runner
Facehugger + Yutja/Predator = Predalien (Chet)
Royal Facehugger + Human = First Pretorian, then Queen
Royal Facehugger + Yutja/Predator = First Predalien Pretorian, then Predalien Queen
MY IDEA: Royal Facehugger + Animal (maybe a dog) = First Crusher, then Runner Queen
BOILERS ARE MUTATED WARRIORS/SOLDIERS
MATRIARCHS ARE VERY OLD QUEENS
Giant Facehugger-Like Creature + Space Jockey = Protomorph????
MY IDEA: Royal Facehugger + Space Jockey = First Protomorph Pretorian, then Protomorph Queen
Cloned Queen out of Ripley = The NewbornSo, that's what I thought. I hope you think it's reasonable. Later!