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