The Guns, Love, and Tentacles Add-on for Borderlands 3 has 8 achievements worth 250 gamerscore.
Marry your friends.
Complete all Crew Challenges and Side Missions on Xylourgos.
Collect all ECHO logs on Xylourgos.
Listen to 25 fish jokes.
Find and kill all 4 rare spawns.
Watch Deathtrap kill 50 enemies.
Kill the Wendigo.
Find the party.