Also keep in mind that if there are Vampires there should also exist a whacko sect that has become hell bend on the destruction of those abominations, also dragons particularly hate Vampires they are some of the few creatures that could kill them by making just 6 points of unresisted essence drain, make it hard for him to hunt, if he is shot on a mission and receives physical damage the presence of the virus will be a "Huge" signal for the corps or other groups and a forewarning for future attacks. Be creative, being a Vampire is cool but you are on the sixth world one news photo or video or something and he will have gropies and assasins on his tail (effectively terminating his carrear)