Here is the full list of all 10 Night At the Gates of Hell achievements.
Kill 10 Zombies with headshots
Kill 25 Zombies with headshots
Kill 50 Zombies with headshots
Defeat the Cheek Freak
Defeat Dr. Fleshenstein
Complete the Woodside Apartment Level
Defeat the Shark
Use 5 Knives
Survive the Facility's Experiment
Survive the Last Stand