All perks are divided into 3 groups: Stealth, Mayhem and Tactical.
Hatchet-throw kills
Kill enemies by throwing your Fire Hatchet.
Requires 10 / 20 / 30 / 40 / 50 kills.
Increases number of Fire Hatchets that can be carried by the hero.
Bonus: +1 / +2 / +3 / +4 / +5 Fire Hatchets.
Enigma codes
Collect Enigma Codes from killed Kommandants.
Requires 5 / 10 / 15 / 20 / 25 Codes.
Jams Kommandant’s signal which extends the time required to raise the alarm.
Bonus: 0.2 / 0.4 / 0.6 / 0.8 / 1.0 seconds.
Quick Kommandant kills
Kill Kommandants without raising the alarm.
Requires 10 / 20 / 30 / 40 / 50 killed Kommandants.
Increases damage dealt by a silenced weapon.
Bonus: +10% / +20% / +30% / +40% / +50%.
Takedowns or tampers
Perform executions on SuperSoldats or tamper with UberSoldats (a jot down of execution).
Bonus: 1 / 2 / 3 / 4 / 5 ammo.
Constrictor kills
Kill enemies while using Constrictor Harness.
Requires 5 / 10 / 15 / 20 / 25 enemy kills.
Increases movement speed while using Constrictor Harness.
Dual-Wield kills
Kill enemies while dual wielding weapons.
Requires 50 / 100 / 150 / 200 / 250 kills
Increases amount of ammo dropped by enemies.
Bonus: +1 / +2 / +3 / +4 / +5 ammo.
Heavy Weapon kills
Kill enemies with heavy weapons.
Requires 20 / 40 / 60 / 80 / 100 kills.
Increases clip size of weapons that are detached from a stand.
Then, you have 100 health.
Requires 10 / 20 / 30 / 40 / 50 kills while this effect is in work.
Reduces speed with which your health depletes after you have more than the default maximum amount of health points.
Requires 25 / 50 / 75 / 100 / 125 kills.
Increases number of carried grenades.
Bonus: +1 / +2 / +3 / +4 / +5 grenades.

Ram Shackles kills
Kill enemies by using Ram Shackles
Increases amount of armor dropped by enemies.
Headshot kills
Kill enemies with headshots.
Requires 50 / 100 / 150 / 200 / 250 kills.
Increases damage while you are zooming in.
These weapons are Dieselkraftwerk, Dieselgewehr and upgraded grenades.
Reduces damage received from fire-based weapons - such as Dieselgewehr.
Requires 10 / 25 / 50 / 75 / 100 kills.
Reduces damage received from explosions.
Requires 5 / 10 / 15 / 20 / 25 kills.
Reduces damage received from electric-based weapons - such as Lasergewehr.
Enemy grenade kills
Kill enemies with their own grenades.
you’re able to throw an enemy grenade back and get a kill.
Requires 10 / 20 / 30 / 40 / 50 enemies.
Extends time for enemy grenades to explode.
Bonus: +0.25 / +0.5 / +0.75 / +1.0 / +1.50 seconds.
Battle Walkers kills
Kill enemies while using Battle Walker.
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