Here is the full list of all 24 DEADBOLT achievements.
Get a five star rating on all missions.
Clear Vall's sniper nest using only headshots.
Collect all memory tapes.
Clear all Dredged missions.
Clear "Ibzan" without being seen once.
Clear "Timur the Tinkerer" using only trap kills.
Destroy a body as it's being revived.
Clear all 1000 Year Royals missions.
Kill a Sergeant mid-spin.
Kill Amber with a melee weapon, and Evelyn with a ranged weapon.
Clear "The Bogeyman" without being seen.
Clear a stage with only headshot kills.
Kill Puff without using the Tommy Gun.
Kill a vampire mid-air.
Clear "The Bloody Mary" without letting any vampires revive.
Kill an undead... using the toilet.
Clear all Zombie Kingz missions.
Buy a weapon from Charon.
Clear a stage with only melee weapons.
Melee a bouncer to death.
Clear the first mission.
Earn every achievement.
Beat the entire game within 1 hour without quitting.
Beat the entire game without dying or quitting.