Full list of all 68 Zombie Army Trilogy achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Over 10,000 limbs lopped
At least 5000 enemies killed
At least 25 Summoners silenced
At least 50 Super Elites bested
At least 25 Fire Demons extinguished
Got a score of 5,000 with a single sniper round
Killed at least 5 enemies with one sniper bullet
At least 500 Skeletons destroyed
Successfully did everything you were asked by Survivors
Hunted down every last hidden Gold Bar
Spotted and destroyed every Bottle of Blood
Wiped out the tainted wildlife around the Folterschloss
Put the tortured souls in the Forest out of their misery
At least 100 Zombie Snipers taken out
Performed unlikely yet successful surgery
Fired shots over 50km in total
Landed the final blow on at least 20 Super Elites in co-op
At least 50 Suicide Zombies denied
Lightened a Super Elite's wallet
Killed at least 500 enemies with headshots
Got at least 20 enemies with one explosion
Reached Wave 10 in Horde Mode – Dead Man's Bluff
Raised your Chain Count to at least 30
Reached Wave 10 in Horde Mode – Flood of Tears
Reached Wave 10 in Horde Mode – Dead End
Raised your Chain Count to at least 20
Reached at least Wave 10 in Horde Mode and had the highest score by the end
Reached at least Wave 10 in Horde Mode and had the most gold medals at the end
Reached Wave 10 in Horde Mode – Waves of Despair
Over 1,000 limbs lopped
Reached Wave 10 in Horde Mode – No Sanctuary
Army of Darkness completed
All Chapters completed on Sniper Elite difficulty
The Keep completed
Answered a phone call from Hell. It was a wrong number
Got a headshot on a Heavy Armour Zombie without removing his helmet first
Forest of Corpses completed
Helped out companions under direct enemy attack at least 50 times
Retrieved hot goods from a Chainsaw Elite
Revived injured companions at least 50 times
Killed at least 20 enemies while incapacitated
Freight Train of Fear completed
Achieved an unbroken 10-headshot streak
City of Ashes completed
Investigated a possessed doll and lived to regret it
Committed foul murder
Tower of Hellfire completed
Terminal completed
Played as every playable character
Shot a Suicide Zombie's grenade – that'll teach him
Crucible of Evil completed
Gateway to Hell completed
Purgatory completed
Subway to Hell completed
Sent an Occult General back to Hell
Prevented at least 20 enemies from getting up
Library of Evil completed
Labyrinth of Death completed
Cathedral of Resurrection completed
Showed a Zombie Sniper how it's done – got him in mid-air
Raised your Chain Count to at least 10
Village of the Dead completed
Engaged in a 4-player co-op game and beat a Campaign level
Acquired the Preacher
Put the boot into at least 50 enemies
Got at least 15 enemies with one explosion
Got at least 10 enemies with one explosion
Acquired a Panzerfaust