In The Season Of Infamy DLC, these enemies appear in 2 different combat sections. The first one is when Batman was chasing Killer Croc which he enters a big cell/fitness room which the door to continue and the door to exit are locked and 12 prisoners come out and fight. This encounter is assisted by Nightwing. Once when the door to countinue is unlocked, Batman and Nightwing find out that the warden and doctors tested and tortured them. One example was on a secret tape states a prisoner gets his finger chopped off.