The The Desolation of Mordor Story Expansion Add-on for Middle-earth: Shadow of War has 10 achievements worth 250 gamerscore.
Change the landscape of Lithlad.
Leave your mark on the Overlord of Lithlad.
Defend the Oasis.
Conquer the Fortress of Shindrâm as Baranor.
Complete the Desolation of Mordor with a Gold Rating.
Collect all Númenórean artifacts and bring them to Torvin.
Kill at least one enemy with each ammo type while gliding as Baranor.
Conquer the Fortress of Shindrâm as Talion.
Achieve a Gold Rating on all Shadow of the Past missions in Lithlad.