Quest

Quests are a gameplay feature introduced in The Dark Below. Quests are specific challenges that are unlocked by completing more quests, with a set reward at the end.

For example, Eris Morn offers a series of quests to Guardians that unlock new content and reward unique items. The first three quests are story missions, with a unique Fusion rifle as the reward. She then offers two different quests; one involves hunting enemies in Patrol to unlock the Will of Crota strike, and the other involves a unique version of Chamber of Night called the Ritual of Sacrifice.

The Dark Below
Quests are available in the following order:


 * Fist of Crota
 * Siege of the Warmind
 * The Wakening

Then the player has the choice of two different quest paths (both can be completed)

Disciples of Crota:
 * The Extermination - Kill Knights and Wizards.
 * Hand of Crota - Find and kill the Hand of Crota
 * Heart of Crota- Find and kill the Heart of Crota
 * Eyes of Crota - Find and kill the Eyes of Crota
 * Will of Crota - complete Will of Crota

Urn of Sacrifice:
 * Urn of Sacrifice - Purchase an Urn from Xur
 * Gather their Dust - Kill Thralls with Solar damage.
 * Gather their Faith - Kill Acolytes and Wizards with Void damage.
 * Gather their Fury - Kill Cursed Thralls with melee attacks.
 * Gather their Suffering - Kill Urzok, the Hated.
 * Ritual of the Forsaken - Complete the Ritual of Sacrifice.
 * Eyes of the Forsaken - Take the Urn to Xur and give the Eyes to Eris.