A Hunter, Through And Through
Very rare3.5%All-the-thingsOptionalAnywhere
DLC2: Guns, Love & Tentacles
Find and kill all four rare spawns.
You can get these rare spawn missions to kill specific named enemies from the Lodge, upstairs. But kills are still eligible whether you pick up the mission or not, so when you find the creatures along the way (you are exploring every area along the way right?) then take them out and you may get this just naturally.