Brotherhood Outfits Quest/Spoiler

=== Outfit ===
Complete missions 1 to 4 of the Dreamer's Challenge Quest and then use the Document of the Follower.
== Addon 1: The Scythe ==
Complete mission 5 of the Dreamer's Challenge Quest and then use the Document of the Officer.
== Addon 2: The Cloak ==
Complete mission 6 of the Dreamer's Challenge Quest and then use the Document of the Leader.
== Attaining the Documents ==
In order to attain these documents you must complete missions 1 to 7 of the Dreamer's Challenge Quest, alternatively you can buy them from someone who has completed the missions.