The Ancient Evil Add-on for Call of Duty: Black Ops 4 has 10 achievements worth 165 gamerscore.
In Ancient Evil, complete all the Primordial God Trials
In Ancient Evil, finish what was started
In Ancient Evil, free the Eagles without switching weapons
In Ancient Evil, incinerate 20 zombies with one channel attack from the Hand of Hemera
In Ancient Evil, impale 8 zombies with one charged attack from the Hand of Gaia
In Ancient Evil, survive the first 20 rounds without leaving the interior of the Temple of Apollo
In Ancient Evil, drag 15 zombies to the underworld with one charged attack from the Hand of Charon
In Ancient Evil, fling 20 zombies with one channel attack from the Hand of Ouranos
In Ancient Evil, kill a Gegenees using only Apollo's Will
In Ancient Evil, fully reignite the Eternal Flame by round 15