I mean, maybe not the -only- one, Kat will know how to patch up a wound and the like, but Cass is certainly far more qualified for the role.

As for David....didn't both of those characters like.... die because of their over the top machismo attitude in those films?

Oh, almost forgot, [@Kazemitsu], Kat probably wouldn't look too tense, honestly, she's just running the thoughts through their course. She's not terribly worried about encountering strange and deadly creatures. Kind of her whole life really.