Plague From Above

Quest giver: Archon Darianna Althus
Requirements: Test the Waters and No Cure for Death
Phrase: willing to serve
Reward: 15 Chronobines, Crest Keep Tower Plate

You'll need to destroy 3 of the catapults near the outpost. Each catapult is linked to the zombies around it so be prepared to handle a few adds or clear out the zombies first. Return to Darianna to complete the task.