Video Guide: https://www.youtube.com/watch?v=Z7TKh9XlRBc
Accept the quest, One Step Ahead, from Sloan McCoy at coords 69.6, 20.9.
1. One Step Ahead - (Video) - Exit Fort Wrynn, and travel to the paved path at coords 66.7, 22.6.
• Follow the paved path southwest to coords 64.7, 25.7, and then turn right to go to Redemption Rise.
• Turn in the quest to Vindicator Maraad at 63.0, 25.9, and accept Through the Looking Glass.
2. Through the Looking Glass - (Video) - Click [npc=77335].
• After the cut-scene, turn this quest in to Vindicator Maraad, accepting Too Many Irons in the Fire.
• Accept Thaelin's Quick Fix from [npc=75874] at coords 63.1, 26.1.
• Accept In Short Supply from [npc=75804] at coords 63.1, 25.8.
• Travel southwest to coords 61.8, 27.6 and accept the quest, Decommissioned Mission from [object=225726] (looks like a book).
Too Many Irons in the Fire - While completing the next sequence of quests, kill 15 Iron Horde.
3. Thaelin's Quick Fix - (Video) - Travel to 'Log Storage' at coords 61.0, 26.9 and click [item=109161].
• Travel west to the 'Thunderlord Cache' at coords 66.4, 26.6 and click [item=109161].
• Travel southwest to the 'Forge' at coords 64.8, 32.6 and click [item=109161].
In Short Supply - Loot 6 [item=107855], on the ground, which appear as cube shaped boxes).
Decommissioned Mission - Travel northwest to coords 62.2, 23.9, and follow the path around & up the hill.
• Defeat [npc=77387] at coords 63.2, 14.4.
• Click the [npc=75809] to take control of it. Travel down the hill, behind it, to Redemption Rise.
• Turn in the quests, and accept Iron Them Out, Vol. X Pages ?, and Dreadpiston.
4. Iron Them Out - (Video) - Travel southwest, along the paved path, to coords 59.6, 29.3.
• Click on 6 Iron Horde Siege Engine to destroy them.
Vol. X Pages ? - Kill Iron Horde in the area of Archenon Seigeyard and loot 20 [item=107843].
5. Dreadpiston - (Video) - Travel to coords 56.4, 27.4 and defeat [npc=80576].
• At this point, you can either start the optional quest Dying Wish, or travel east to Redemption Rise, at coords 63.1, 25.8 and turn in Iron Them Out, Dreadpiston, and Vol. X Pages ?.
[Optional:] Dying Wish - (Video) - Travel north to coords 56.9, 26.0 and accept Dying Wish from [npc=77031].
• Travel up the stairs and enter the building at coords, , and kill [npc=76981].
• Loot [item=108825] off the corpse of [npc=76981].
• Turn the quest into [npc=77031] (if you use your [item=110560], he will be available as a follower for you, outside your garrison gates).
Travel west, back to Redemption Rise, and turn in the quests at coordinates 63, 25.