History of Vigilance Wing

The Vigilance Wing is a Kinetic Exotic Pulse Rifle tied to the Cult of Osiris and Trials of Osiris. Its intrinsic Harsh Truths fires a five-round burst and grants health regeneration and movement speed when a nearby ally dies; Last Stand improves performance and recovery when its wielder is the last living fireteam member. It is the only burst-fire pulse rifle.

Acquisition

Exotic engrams and extremely rare world drops; guides also list Xûr as a source when it is in his rotation.

Catalyst

The catalyst drops randomly from Crucible kills. To unlock it, defeat 250 Guardians with the weapon and earn 5 Blood for Blood medals. Older guides (2021) list the perk as Full Auto Trigger System; a newer source says it was replaced by Ensemble (handling and reload bonuses near allies). Sources disagree, so check in-game.