Vamp is a character in the Metal Gear Solid Series that appears in the second and fourth installments. Vamp, at least initially, seems to have supernatural abilities. Vamp survives wounds that would kill any normal human without question. Over the course of the Metal Gear Solid 2 & 4 we see Vamp perform truly miraculous feats including walking on water and surviving gunshot wounds to the head. Vamp is also a fighter of prowess that is unmatched other than perhaps by Raiden in Metal Gear Solid 4. His skill with a knife is superior, he will kill without remorse, and almost seems to relish pain inflicted upon him as we can see when he licks his blades. For as supernatural as his powers seemed to be it all ended up being the byproduct of nanomachines. Given the length of discussion on what nanomachines alongside the SOP system were capable of in the closing chapters of the game it does seem entirely plausible that Vamp would be able to do all the things that he did. However there are some that would argue that Vamp's powers seemed all the more amazing when we were under the impression that they were truly supernatural in nature. Metal Gear Solid 2 is not without its supernatural moments. Consider when Fortune deflects the entire salvo from Metal Gear Ray even after Ocelot deactivates her protective field device.
Metal Gear Solid 2: Sons of Liberty
In Metal Gear Solid 2: Sons of Liberty, Vamp is one of the four members of Dead Cell, an organization created to take down terrorist cells (hence Dead Cell). Dead Cell is commanded by Solidus Snake to try and hijack Arsenal Gear beneath Big Shell. Vamp is first seen after brutally killing several members of Seal Team 10, but retreats to assist Fortune, who he refers to as "Queen," in capturing the President. Vamp later travels to the bottom of Strut A where Raiden is engaged in a firefight with Fortune. While they are distracted, Raiden shoots at Fortune, but the bullet deflects around her electromagnetic field and connects with Vamp's forehead. Vamp appears dead, but is only temporarily unconscious. Vamp, along with Solidus, later pilots the Harrier jet that attempts to kill Raiden. Raiden evades the attack, however, and destroys the aircraft. Vamp sprints across the surface of the water away from the sinking jet. Raiden encounters him once again in a chamber containing a pool filled with non-buoyant water, where Vamp is defeated and disappears beneath the surface of the pool. Vamp reappears once more on the connecting bridges at the bottom of Big Shell and stabs (and kills) Emma Emmerich. Raiden shoots him with a sniper rifle and Vamp falls into the water, apparently finally defeated, but is seen again among the crowds as Arsenal Gear crashes into Manhattan.
Metal Gear Solid 4: Guns of the Patriots
In Metal Gear Solid 4: Guns of the Patriots, Vamp is a high-ranking member of Liquid's private army. Vamp is first seen in South America, where he battles Raiden as Snake and Naomi escape. Vamp believes Raiden to be the only worthy opponent he has ever fought and thinks that Raiden could be the one to kill him. During their fight, Vamp and Raiden wound each other severely, and are forced to break off the fight to recuperate. Their fight resumes later on Shadow Moses. After Snake is able to suppress Vamp's nanomachines, Raiden attacks and presses his advantage. Vamp is finally killed after Raiden inflicts critical wounds and Naomi completely suppresses his regenerative nanomachines.