Fort Ranik (mission)/Zaishen Quest

Summary

 * Push the invading Charr forces back to the Great Northern Wall.
 * *BONUS* Rescue Deeter Saberlin from the Charr.
 * *BONUS* Complete the mission in Hard Mode.

Dialogue
'' Ascalonian commanders are in trouble at Fort Ranik. The Charr army has breached the Northern Wall and taken prisoners. Using any measures necesarry, push back the invading Charr forces. For Ascalon! ''
 * Accept: I can do that!
 * Reject: No, I'm way too busy today.