I think the Spitter is a result of an alien being born oit of a host affected by the pathogen or something like that, basically make it come like a mix of both, less evolved if you will
Also Queen I think you confused the Prowler with the Burster
Also the Runner bit seems like a nitpick, they changed it slightly while still keeping it movie accurate, same for the Drone, Warrior and Queen, they've all been stylized to fit the game's artstyle, and as someone who is very nitpicky with alien designs, I'm satisfied with these
I like the Praetorian, I don't think it's inspired by rhw Spitter from ACM, as that one seemed ro be inspired by previous Praetorians instead