The The Descent Content Pack Title update for Killing Floor 2 has 10 achievements.
Complete Nuked on Survival Normal difficulty
Complete The Descent on Survival Normal difficulty
Complete The Descent on Survival Hard difficulty
Complete The Descent on Survival Suicidal difficulty
Complete The Descent on Survival Hell On Earth difficulty
Collect all the items on The Descent
Complete Nuked on Survival Hard difficulty
Complete Nuked on Survival Suicidal difficulty
Complete Nuked on Survival Hell On Earth difficulty
Collect all the items on Nuked