"G-Gah!" Isaac yelled in utter agony, grasping his bleeding arm as dark, corrupted blood seeped from the wound, covering his arm in its deep black liquid. (Vileblood's have corrupted blood - and as such, it is a darker color. Bloodborne stuff.) Immediately, Arianna drew her Beretta and unloaded two rounds into the zombie's hand, before grabbing Isaac and pulling him tightly to Tyrell, who was probably still running ahead..