Warhammer Online follows a string of questlines, with each of the 6 races having their own WAR Story, starting from prologue and ending in chapter 22. Warcamps are also chapters (without numbers) in the 'story'. All have three influence rewards, which are able to be recieved for each 1/3 of the total influence for the chapter is gained. Pick up your rewards from that chapter's rally master.
You are able to complete another races WAR Story provided the race is on the same side in the Order vs Destruction battle.
Note that each career gets its own list of rewards to choose from for chapter influence rewards.
The WAR Story is split into Tiers and Chapters, Tiers are a grouping of levels and chapters that reprensents a set of zones, there are 4 Tiers in the game, the level ranges and chapters within each are listed below.
Tier 1[]
Tier 1 PvE areas covers ranks 1-11 and the Open RvR areas covers players from ranks 1-16.
Tier 2[]
Tier 2 PvE areas covers ranks 12-21 and the Open RvR areas covers players from ranks 12-26.
Tier 3[]
Tier 3 PvE areas covers ranks 22-31 and the Open RvR areas covers players from ranks 22-39.
Tier 4[]
Tier 4 PvE areas and Open RvR areas covers ranks 32-40.