Against the Charr/Zaishen Quest

Summary

 * Search for the Ebon Vanguard in the Charr homelands.
 * *BONUS* Complete the mission in Hard Mode.

Dialogue
''A cadre of the Ebon Vanguard have gone missing. Looking for volunteer soldiers to investigate their last known location: battling against the Charr on the Grothmar Wardowns.''
 * Accept: I can do that!
 * Reject: No, I'm way too busy today.