History of Corrective Measure (triumph)

Pattern triumph for the Corrective Measure machine gun from the Vault of Glass raid. Completing Deepsight Resonance extractions on it unlocks its craftable Pattern; progress is 0/5.

How to complete

1. Get red-border Deepsight versions of Corrective Measure: drops from the Conflux, Templar and Atheon encounters, secret chests, the boss chest, or a free one from Hawthorne via her weekly Deepsight quest (per Blueberries; it is also listed at the Monument of Triumph).
2. Complete the Deepsight Resonance extraction on each one. Five extractions unlock the Pattern.
3. Check the Patterns section of your Triumphs for current progress; the count varies by weapon (Shacknews).

Part of the Vault of Glass Patterns triumphs. Note: sources predate recent Vault changes.