The way I did it was to just repeatedly hit his head . You can lock on to his head or his body . A few good hits will make him lose his electricity and he ' ll collapse to the ground . Keep the pressure on his head after that because he ' ll try to back away from and reactivate the sparks . Try to be super aggressive in this fight . If you get hit , just let the rally heal you . <| sep |> That fire extinguisher scene D <| sep |> yea it is very good because of recoil it launches the guy back and the guy pulls the bolt back allowing the bullet to leave the chamber and to chamber another one and then its firerate goes up by 200 <| sep |> yeah if it comes to that . and castle stays alive . in my case that isn ' t the case haha