Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.

Acquire a level 25 Rune.

Capitalize on a Warchief's Fear.

Make 20 uruks flee by dropping Morgai Fly nests.

Complete all Survivalist Challenges.

Collect 100% of the Artifacts and listen to their memories.

Complete all Azkâr Legend Missions.

Brand 5 Bodyguards of a Warchief, turning them against him in combat.

Collect 50% of the Ithildin.

Kill The Black Hand.

Save Lithariel's life.

Start a Riot by commanding a Warchief to attack another Warchief.