The Crow returns to the reef, looking for his sister, but she's nowhere to be found. He believes she is dead, this thought enrages him. He blames the Vanguard for not helping in the assault on the Dreadnaut, and is especially mad at us, since he never liked us anyways. Revenge is on his mind. The Vanguard must be destroyed. He aligns himself with the darkness, releasing anyone from the PoE that will aid in his cause. The first mission takes place in the far side of the tower, the darkness is striking. We're set to clear out all the enemies and find out how and why they are directly attacking us. After we kill the Ultra, it drops a coded transmission. We are to take it to the Vanguard and the Warlocks decipher it. We learn that it was from the reef. The Vanguard are disturbed by this and send us to speak to them at the reef...