I agree... this should be put into trem 1.2 as a new class... Instead, my view on the face hugger is...
Alien Name: Undecided
Alien Health: 100? (Maybe 75)
Alien Damage: Undecided, but should be a Damage Over Time Thing
How the Alien Kills & Takes Over: You basically are like a basalisk (Except you crawl like a snake, side to side with a basi tail. You jump at a human's head, and you latch on. Once on the human, you basically tear up his skull, and go inside of his mouth. First the human must be LESS than Full health. Then, you go onto his face, and if the human cannot point his gun at you (Your vision and everything will be so severe, it will be like basi gassing you, and all that at the same time) so you will be able to blast it off with 2 shots, because it is really weak when up front... (Its health drops to 15? when it latches on your face) Or... i mean a lot of ideas... but this is a basic UNFINISHED idea... like a super adv. basalisk