The Survivors Mode is a Horde mode in which players fend off waves of enemies, with the twist that if a player gets killed, they switch over to the enemy side and attack the surviving players. If a turned player kills a survivor twice, they become human again.
The Predator Mode puts a player in the role of the monstrous Ustanak, whose goal is to eliminate the human players. The humans must survive the session or try to take down the creature.
Finally, the Siege mode is a basic VIP mode, where one team must protect an NPC while the enemy monster team must kill the NPC.
Capcom went on to tease additional post-launch downloadable content for Resident Evil 6 in the form of future maps for all of the game modes including the Mercenaries mode.