User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-5469022-20120902015437/@comment-4553238-20120902023637

the vampire thing happens once you get the perk about 85% of a heavy melee killing attack so pretty often and one of the spells is drain life with radius and large health drain, sprint is faster i think but vampire has ranged attacks and can hover over water getting across it quicker