Here is the full list of all 50 Wolfenstein: The Old Blood achievements worth 1,000 gamerscore.
Achieve gold medal for this challenge map
Complete the prologue nightmare
Complete game on any difficulty
Complete the nightmare boss level
Unlock the Eagle Eye perk
Unlock the Vampire perk
Unlock the Armor upgrade II perk
Unlock the Armor upgrade I perk
Choose to save Kessler
Complete the nightmare in chapter 6
Collect 5 letters
Unlock the Quick turn perk
Unlock the Kampfpistole ammo storage upgrade perk
Unlock the Ammunition upgrade perk
Unlock the Grenade belt perk
Unlock the Tough Skin perk
Collect 16 gold items
Unlock the Reload mash perk
Complete part one
Unlock the Health upgrade III perk
Unlock the Health upgrade II perk
Complete the nightmare in chapter 4
Escape Castle Wolfenstein
Unlock the Bombenschuss clip upgrade perk
Unlock the Health upgrade I perk
Unlock the Schockhammer clip upgrade perk
Complete the nightmare in chapter 3
Collect 8 gold items
Infiltrate Castle Wolfenstein
Choose to save Annette
Complete game on I AM DEATH INCARNATE! (or ÜBER)
Complete game on ÜBER
Complete all nightmare levels
Complete the nightmare in chapter 1
Complete the nightmare in chapter 2
Complete the nightmare in chapter 5
Complete the nightmare in chapter 7
Collect all letters
Collect 32 gold items
Collect 64 gold items
Unlock the Carry heavy machinegun perk