Out of all the ideas Ive heard so far, That is definitely a new one, I like it. Maybe its own game mode. Cuz that definitely changes everything.... Only problem is, staying true to the movie. That "parasite" basically is Jason. Jason isn't standing there while his parasite is out and about.lol.. So it can't really leave Jason. As seen when "the infected" in the mirror WAS Jason. SO maybe its own Game mode, whereas Everyone is a counselor. But one is "infected" Transferring body to body, dying in the process also growing stronger. When 2-3 counselors are left. Jason is Jason.Pissed off as ever! But again staying true to the movie is a problem.
Just having fun... The game is expected in the coming months. None of this matters. The game will be great as is!!