Here is a guide on how to get all 16 perks in Wolfenstein The Old Blood.
Health & Armor Perks
Award: Increases health regeneration speed by 30%.
Requirements: Overcharge health to 200.
Award: Increases health regeneration by 5 health points.
Requirements: Overcharge health to 250.Health Upgrade III
Award: Increases maximum health points by 25.
Requirements: Kill 5 enemies in a row while overcharged.
Armor Upgrade I
Award: Unlocks the ability to overcharge armor.
Requirements: Collect 100 helmets from enemy soldiers.
Armor Upgrade II
Award: Increases maximum armor points by 25.
Requirements: Overcharge armor to 200.
Award: Reduces health loss from melee attacks.
Requirements: Smash the heads of 10 Shamblers with the pipes.
Award: Increases ammunition pickup value by 20%.
Requirements: Perform 100 dual-wield kills.
Award: Increases the Schockhammer’s clip-size by 6.
Requirements: Get 50 kills with the Schockhammer.Bombenschuss Clip Upgrade
Award: Increases the Bombenschuss’s clip-size by 5.
Requirements: Get 50 kills with the Bombenschuss.
Kampfpistole Ammo Storage Upgrade
Award: Increases the Kampfpistole’s ammo storage by 3.
Requirements: Get 50 kills with the Kampfpistole.
Award: Increases the amount of grenades you can carry by 2.
Requirements: Kill 3 enemies with one grenade.
Award: Carry a heavy machinegun in inventory/weapon wheel.
Requirements: Kill 200 enemies with the Machine Gun 1946.
Award: Show markers in the world for collectibles.
Requirements: Perform 20 stealth kills on commanders.Quick Turn
Award: Enables you to do a quick 180 turn and auto aim at the nearest enemy.
Requirements: Kill 50 enemies while hiding behind cover.
Award: Increase the ability to increase reload speed by mashing the reload button.
Requirements: Kill an enemy with the last bullet of a magazine 20 times.
Award: Unlocks the ability to receive health from performing takedowns. Health points are added up to maximum health level.
Requirements: Perform 25 stealth takedowns.