The Apocalypse Add-on for Battlefield 1 has 5 achievements worth 250 gamerscore.
Perform 1 kill with the Livens Projector
Perform 1 kill with the Broken Bottle
Perform a melee kill on a Flametrooper Elite
Perform a kill with all "Apocalypse" weapon variants
Destroy 5 airplanes while in the Behemoth Airship L30