"I meant what I said about the chips, Andrew. I've blown a lot of Overwatch heads open. Most of the grey matter's gone. There's a stem and a cerebellum, and a couple of the connecting anatomical features're left, but most of what's inside a Combine soldier's cranial vault is what's been put there by the Combine. There's not a whole lot of factory original equipment left in the abdomen and pelvic bowl either. Throw in the part where memory replacement is the first step to promotion in the ranks, and I doubt you could get one back."