Some important points about support expeditions are: * Events come with their exclusive support expeditions (e.g. expeditions 133 and 134 for normal and boss support, respectively) that can only be used throughout the event. * These event expeditions are unlocked by default. * Ships that take part in support expeditions are exempted from ship locking. * Outside of events support expeditions only work in World 5. * Aerial Support does not work on night battle-only nodes. * For night to day battle nodes, Shelling and Torpedo Support trigger at the start of the night battle, while Aerial Support triggers during the day battle.