The Los Demonios Add-on for Just Cause 4 has 10 achievements.
Finish The Artifact
Finish Extermination
Purge the Infestation on the Mainland
Expel the Infestation at the Farm
Exorcise the Infestation at the Church
Eradicate the Infestation at the Compound
Liquidate the Infestation at the Lake
Obliterate the Infestation at the Crash
Abolish the Infestation on the Mountain
Create a Cow Demon