Legionfall Campaign:
***Note: It is recommended to work on the treasure finding quests the goblins south-west of Deliverance Point give you, in order for you to have eight world quests available when it comes time to complete them for step 11. The goblin's last quest isn't available until the following day/reset. Their final quest opens up the world quest Treasure Master Iks'reeged.
1. Assault on the Broken Shore (Intro Scenario) [Skippable if you've done it once before]
2. Legionfall Supplies (Collect 100 order resources) [If you plan to do the whole Legionfall Campaign in one day, it's best to get the order resources by collecting them from chests around the island! You will need to kill rares and do world quests later, so save them to do when needed.]
3. Aalgen Point (Visit flightplan) [Might not be mandatory, but why not do it?]
4. Vengeance Point (Visit flightplan) [Might not be mandatory, but why not do it?]
5. Begin Construction (Use construction table to donate Legionfall War Supplies to the construction of a building)
6. Altar of the Aegis (NOT REQUIRED!) (Accepting the quest will cause the NPCs to run away. Relogging will cause them to reappear)
7. Defending Broken Isles (Defeat a Legion invasion in the Broken Isles). If one is not available, it is recommended to continue on your class hall questline if it hasn't been completed yet. There will not be a follow-up quest to Defending Broken Isles unless you have completed your class hall campaign.
8. Champions of Legionfall (Return to your class order hall and recruit a new champion)
9. Shard Times (Collect 2500 Nethershards to give to Khadgar)
10. Mark of the Sentinax (Collect 50 Marks of the Sentinax)
11. Self-Fulfilling Prophecy (Complete 8 world quests on the Broken Shore)
12. Intolerable Infestation (Slay 50 demons in Faronaar or Felsoul Hold)
13. Relieved of Their Valuables (Find 3 Hidden Wyrmtongue Caches on the Broken Shore)
14. Take Out The Head... (Slay 3 Rare Elites on the Broken Shore)
15. Championing Our Cause (Successfully complete a Legionfall [Broken Shore] mission at your Class Order Hall) (The mission can be put in before ever accepting this quest, but do not complete/accept the rewards from the mission before accepting this quest in order to get quest credit.)
16. Strike Them Down (Slay 100 demons on the Broken Shore)
The Legionfall Campaign is then complete, and you should receive a quest from an NPC at Deliverance Point to start your class mount questline.
----The Deceiver's Downfall (Not mandatory!)
----Pillars of Creation (Not mandatory!)
The two quests listed above are definitely not required for the Legionfall Campaign (or to get your class mount).