Here is the full list of all 50 Wolfenstein: The New Order achievements worth 1,000 gamerscore.
Collect all gold items
Unlock demolition perk 5
Solve the fourth Enigma code
Solve the third Enigma code
Unlock assault perk 7
Solve the second Enigma code
Solve the first Enigma code
Collect all letters
Unlock demolition perk 4
Unlock demolition perk 7
Unlock demolition perk 6
Unlock assault perk 3
Unlock tactical perk 7
Unlock assault perk 5
Choose to save Wyatt
Unlock tactical perk 6
Complete game on ÜBER
Complete game on any difficulty
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Release friend
Unlock demolition perk 8
Defeat the London Monitor
Unlock stealth perk 4
Unlock stealth perk 6
Unlock demolition perk 3
Unlock assault perk 8
Collect 25 gold items
Unlock assault perk 6
Unlock tactical perk 8
Locate the underwater stash
Unlock tactical perk 5
Unlock assault perk 2
Unlock tactical perk 4
Unlock stealth perk 8
Find the Laserkraftwerk
Unlock tactical perk 3
Unlock stealth perk 5
Locate the resistance
Unlock stealth perk 3
Unlock demolition perk 2
Unlock tactical perk 2
Choose to save Fergus
Unlock assault perk 4
Unlock stealth perk 7
Unlock tactical perk 1
Unlock assault perk 1
Unlock stealth perk 2
Unlock stealth perk 1
Unlock demolition perk 1
Save allied planes