Ok, well to address this situation, A) We already have a couple Survivalist types, my character included. B) Nightstalkers are not only op as a pet, but are actually un-trainable in lore. That is why they broke free. They were experiments at Big Mountain and escaped after the bombs fell. They were never able to be tamed, and will never be able to be tamed. C) We already have a Beastmaster character who accents the use of a companion and furthers that Archetype with a Mutation.