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