In addition, new defense missions seem being added:

  •     Defense Mission: Flame Bird Support – Players can tutor MapleStory 2 Mesos yourself for that Flame Bird’s Summon skill by actually talking to Helena. While the Flame Bird is summoned, defeated monsters will drop Flame Bird’s Determination
        Defense Mission: Twilight Defense – This mission involves 2-4 characters joining forces to defeat enemies using cannons and protect the castle walls
        Defense Mission: Battle at Sea – Players must defeat enemies MapleStory 2 Mesos for sale through the time limit clause with ships and crew members