Some of the features of the DLC includes:
* Four-Man Combat Alert: Players will earn Marks of Distinction, good towards purchasing tier two gear pieces, for completing this challenging combat encounter within the League of Assassin’s Stronghold and those who survive the combat will be also be able to earn other valuable loot items including Ra’s al Ghul’s cape.
* New Loot Drop: Collect a full set of League of Assassins gear.
* Investigate the League: New investigation and brief detailing the League of Assassins will be rewarded with a Kabuki Ninja Mask.
* A new four-player Hard mode is included in the update.
Also included in the update:
* Oolong Island Civil War: Chang Tzu and T.O. Morrow have started a coup on the "mad science" independent island state. Chang Tzu is publicly working against the government of Oolong with Morrow only pretending to try to stop the chaos. Players must help Oolong scientists flee the island with their important research but the exodus will require the help of both heroes and villains to destroy the technology before it destroys the island.
* Hard Mode: Harder version requires four people and offers new loot.
