The Commander Lilith & the Fight for Sanctuary Add-on for Borderlands 2 has 6 achievements worth 250 gamerscore.
Achievements they've won
Achievements they've not won
Activate the Backburner's firewall.
Allow Tiny Tina to arm the moonshot cannon.
Defeat Haderax the Invincible.
Defeat the Dark Web.
Equip effervescent-quality gear in all slots (except class mod).
Complete the mission "Paradise Found".