WoW BFA: War Campaign and Expeditions Guide 

War Campaign is Legion's Suramar analogue. A story quest about a war with the opposite faction. 

All the quests begin at your ship heading into the opposing faction's continent or scenarios. 

War Campaign awards a significant amount of AP and is requred to unlock 2 mythic dungeons: Siege of Boralus (Horde) and Tomb of Kings (Alliance). Also a required step for Pathfinder flying achievement.

Those mythic dungeons are locked with reputation (not required for alts):
Siege of Boralus - 7k/12k The Honorbound reputation for Horde;
Tomb of Kings - 7k/12k 7th Legion reputation for Alliance.

The quest in chain of the achievement below is opened with reputation: The Honorbound (Horde) / 7th Legion (Aliiance). Look to the right or see "Reputations" page to learn how to level those reputations.

1. Do resources WQs;
2. Once the Warfront is under your control resources quests can be found within.

1. Followers are obtained automatically, no specific prerequisites required.
2. 4 followers are obtained once you reach lvl 120. 5th is given after you finish War Campaign story line.
3. Follower missions reward AP and reputation, worth launching.
4. There is a new type of missions for a new outpost on an enemy's continent part or upgrading an existing outpost. Award resources, should be launched when there are no more AP and reputation missons.
5. Gold missions are back :)

Expeditions are a short 3 player scenarios that rewards AP and doublons.

Weekly quest gives 2500 AP. Must be done every week. 7 expeditions victory (5 for heroic and etc.)

Doublons can be spent on HP and damage buffs in expeditions. Useless in raids.

Expeditions are not the most effective way of farming AP, but you can do them as much as you want. Do them once you've done with dailies and dungeons.

There are 4 types of expeditions. You should be doing those you can complete in 10 minutes or less, not effective otherwise.

1. The main goal is to collect 6k azerite before the enemy team does (9k heroic, 12k - mythic)
2. Killing mobs is pointless, the aim is to collect azerite (ore, shards, chests, quests, crosses and skulls on map)