Factions have long since divided mankind, and it is this division of man that allowed the demons to triumph within the first days of the invasion. Men who once stood against each other are now bound in eternal struggle against the infernals, brothers in arms. The Templar are a Holy Order of warriors whose beliefs and rituals guide their actions, and whose struggle is one that is both physical and spiritual in nature. The Cabalists are seekers of knowledge, and their goals and beliefs reflect their eternal quest in erudition. They see man's darkest hour as a new opportunity to unlock and discover the arcane knowledge possessed by the demons. Hunters were highly-trained ex-military operatives and members of secret government agencies most comfortable clinging to the shadows and dealing with threats in their own deadly ways.
Whichever path they tread, it is one that defines them heroes.
Delvers of arcane knowledge, students of the dark arts, and explorers on the fringes of science, Cabalists use the powers of the demons against them. Cabalists are spell-casters, and more specifically, summoners and controllers of demons and the primal forces of the netherworld. They seek to study and dissect the essence of the demons to achieve the next evolution of mankind.
The invasion was a call to arms to the inheritors of man's warlike legacy, and the Hunters were among the earliest to respond. The archetype of the Hunter is obscure, cloaked in mystery and subterfuge. In one way he is the Assassin, the Ninja, the knife in the dark. In other ways, he is the Ronin, a highly-trained warrior with no master. In yet more, he is the Destroyer, a force of blazing gunfire and deadly accuracy that lays waste to any foe that stands in his way.
These are the followers of the ancient rites and rituals of the Knights Templar whose writings and disciplines foresaw the demonic invasion centuries ago. Since the Dark Ages their order has been prepared for this apocalypse, training in the ways of holy magic and organizing their followers for the eventual war against the forces of Hell.