Kotaku, citing two sources, notes that one mode will place players in Joker or Bane's gang to bring down The Batman and Robin.
"The villains involved - who may be playable and customizable - include Killer Croc, Deadshot, Firefly, Black Mask, Deathstroke, and 'some kind of Electroman character,'" reports the site. "This could be one multiplayer mode, or it could be the only one. We don't know."
Batman: Arkham Origins will launch on October 25 for current generation platforms and PC, alongside a portable version for 3DS and Vita called Batman: Arkham Origins Blackgate.