Originally Posted by art_

There actually is an 'exploit' to this mission funnily enough. As i don't play pve any more im happy to let it out the bag (unless it has already been done or changed by an update )

Basically if you solo run the mission you can finish the mission without triggering the mobs by following a simple procedure. When you get to the end when you get to the docks simply approach the location where Vizier will spawn very slowly in very small movements until he spawns then don't go any further forward. If you do this correctly the mobs of white mantle that normal charge you won't be spawned and you can just wait for Viz to summon the ship.