Originally Posted by Dead Like Me
Also, a charged Plasma Pistol shot on Knights works wonders... followed by about 2 or 3 scoped LightRifle headshots to finish them off. I should be done with this playthrough within the next 2 hours - and then I'll know for sure if it was Legendary.
I think the knights have a mask to protect their head/face. PP is useful - but on later levels there are none