after a few hours, you wake up in a mountain with Sherry (who knows how you survived falling from an helicopter), but you feel your hand cold, when you check it out, it's full of blood. You (obviously) move away, just to see that she has a piece of metal stabing her back. When you're wondering what to do, you hear her voice

Sherry: "Pull it out..."

you hestitantly pull it out, just to see that she regenerates the wound, that isn't normal