This quest is not available in game.
Slay 30 Hive'Zora Tunnelers and report back to Commander Mar'alith at Cenarion Hold in Silithus. You must also bring Combat Task Briefing VII in order to complete this quest.
Reinforcements have been called on to join the assault on Hive'Zora. You have been selected to target Hive'Zora tunnelers. Report back to Commander Mar'alith after completing your task.