This includes Regicide, the final mission aboard the Dreadnaught where you face Oryx.
To actually unlock the quest you must first complete the main story missions in Destiny: The Taken King. Update: In addition to completing the story and the Dread Patrol quest, we are also hearing that this will unlock after you find your first Calcified Fragment, which can be obtained from the first mission, The Coming War. You cannot get the Hadium Flakes if you don't have room to store them. Important Note: If you are opening the chests and only getting Glimmer, make sure that your inventory is not full. When you're done, you will have unlocked either the Void Edge, Sol Edge or Arc Edge. We’ll explain them all, getting you through this quest in about 30 minutes. Before you can do that, however, there are certain requirements that must be met. This requires that you complete a quest from Eris Morn called, A Broken Will. This article will show you how to unlock the sword in Destiny: The Taken king.