City Hunter does seem to have a bloodlust, he picks situations for the most carnage, placing himself in harms way even, a la the train and apartment. Its as if the cauldron of bloodshed he creates around himself is a drug.
That said, the way he leaps into fray makes me wonder if he comes from a Warrior Tribe rather than a Hunter discipline, for as I have pointed out before City prefer melee weapons to a Plasma Caster, while Jungle Hunter used his caster much more, like a true hunter firing from cloak and cover.