World of Warcraft Quests involving Defias Knuckleduster:
Silithus Alliance & Horde
Target: Hive'Regal Spitfires Kill 30 Hive'Regal Spitfires and report back to Commander Mar'alith at Cenarion Hold in Silithus. You must also bring Combat Task Briefing IX in order to complete this quest.
Eastern Plaguelands Alliance & Horde
The Battle of Darrowshire Place the Relic Bundle at the Darrowshire town square.
Prevent Davil Lightfire's death until the death of Horgus.
Prevent Captain Redpath's death until Redpath the Corrupted appears.
Defeat Redpath the Corrupted.
Speak with the spirit of Joseph Redpath when he appears at the town square, then speak with Pamela at her home.
Westfall Alliance Quest
The People's Militia - (Step 3) Gryan Stoutmantle wants you to kill 15 Defias Highwaymen, 5 Defias Pathstalkers and 5 Defias Knuckledusters then return to him on Sentinel Hill.