Ratcatcher, who is quickly shown as Otis Flannegan in the trailer, is shown a "bit crestfallen" because he had previously put his faith and belief into Batman: Arkham Origins' Black Mask ...

Black Mask — the leader of a secret paramilitary ... Holdings” subsidiary is behind the “Ark M fund” — Joker and Arkham — Gotham’s version of secret, unregulated prisons being ...