Nurse

Nurses (or Freaks) were once appointed by The Firm to treat and help paitents that have been affected by the HNS. Those whom were affected were taken to special Camps/Outposts were they were stationed, however the camps were rather unsanitary, leaving HNS prone viruses on most surfaces. Most Nurses caught the Virus when handling dirty medical equipment, or generally being near paitents who had the virus.

Tactics
Nurses often carry knifes or other blunt objects. They are rather fast, however they do not have much stamina, therefor they only can run for short distances. They often take their subjects from behind, where they can easily sneak up to people.