Here is the full list of all 50 Wolfenstein: The New Order (DE) achievements.
Complete game on any difficulty
Release friend
Unlock tactical perk 8
Defeat the London Monitor
Unlock stealth perk 6
Unlock assault perk 6
Unlock stealth perk 5
Locate the underwater stash
Unlock stealth perk 3
Find the Laserkraftwerk
Unlock tactical perk 3
Unlock demolition perk 2
Unlock tactical perk 2
Locate the resistance
Unlock stealth perk 7
Unlock demolition perk 6
Choose to save Fergus
Unlock assault perk 4
Unlock stealth perk 2
Unlock demolition perk 1
Unlock tactical perk 1
Unlock assault perk 1
Unlock stealth perk 1
Save allied planes
Choose to save Wyatt
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Complete game on ÜBER
Collect 25 gold items
Collect all gold items
Collect all letters
Solve the first Enigma code
Solve the second Enigma code
Solve the third Enigma code
Solve the fourth Enigma code
Unlock stealth perk 4
Unlock stealth perk 8
Unlock tactical perk 4
Unlock tactical perk 5
Unlock tactical perk 6
Unlock tactical perk 7
Unlock assault perk 2
Unlock assault perk 3
Unlock assault perk 5
Unlock assault perk 7
Unlock assault perk 8
Unlock demolition perk 3
Unlock demolition perk 4
Unlock demolition perk 5
Unlock demolition perk 7
Unlock demolition perk 8