KF2 Perk Cheat Sheet: Bonuses and Skills of All Perks (2019)

This is a translation of a Thai-language community guide that lists every perk with its passive bonuses and its skill choices. It is a quick reference you can scan when deciding on a build, with the numbers as written by the author around early 2019. The guide marks Berserker as recommended for new players and Demolitionist as recommended for support from a distance. Because perks have been rebalanced since, treat the values as a snapshot and verify in game.

How perk skills work

At levels 5, 10, 15, 20 and 25 each perk offers two skills and you pick one. The level 25 pair are ZED Time skills that change how the perk behaves during ZED Time. Passive bonuses grow with each level.

Berserker

Berserker perk icon.

Bonuses. Clots cannot grab you; night vision instead of a flashlight; +1% damage per level (starts at +25%) for Berserker weapons only; -3% damage taken from all sources every 5 levels.

Level	Skill A	Skill B
5	Dreadnaught: +75% health (175 HP)	Skirmisher: +20% move, +25% sprint, regenerate 1 HP per second with melee out
10	Vampire: +4 HP per kill, +20% attack speed	Butcher: +20% attack speed, +25% damage
15	Resistance: -20% damage taken, an extra -20% from poison and sonic (40% total)	Parry: after a parry, for 10 s: -40% damage taken, +5% attack speed, +35% attack damage
20	Smash: +50% heavy attack (alt-fire) damage, +25% on head hits, +200% stumble power	Massacre: +5% attack speed, +30% light attack damage
25	ZED Time Berserker Rage: heal 25%, nearby ZEDs flee	ZED Time Spartan: run and attack at normal speed

Commando

Commando perk icon.

Bonuses. +1% damage per level for Commando weapons; see invisible enemies and enemy health, range +2 m per level starting at 10 m; longer ZED Time, starting at +1 s and +1 s more every 5 levels; night vision; +2% reload speed every 5 levels.

Level	Skill A	Skill B
5	Tactical Reload: faster reloads	High Capacity Mags: +50% magazine size
10	Fallback: +110% damage to the 9mm and knife, 50% faster weapon switching	Impact Rounds: +150% stumble power
15	Tenacious: +25% health and armor	Prepared: +20% ammo for perk weapons
20	Hollow Point Rounds: +25% damage, 50% less recoil	Eat Lead: +100% magazine size
25	ZED Time Tactician: normal-speed reload, weapon swap twice as fast	ZED Time Machine Gunner: +3% damage, fire three times as fast

Support

Support perk icon.

Bonuses. +3% welding speed per level; +1% damage and +20% penetration per level for shotguns; +1% ammo per level. Passives: Strength (+1 kg carry weight every 5 levels), Ammo Backpack (teammates can take ammo from you, as from an ammo box but without the explosion), Door repair (fix broken doors).

Level	Skill A	Skill B
5	High Capacity Magazines: +50% magazine size	Tactical Reload
10	Fortitude: +50% health	Salvo: +30% damage
15	Armor Piercing Shot: more penetration	Tight Choke: -50% pellet spread
20	Resupply Pack: teammates can take 30% of the ammo and 20% armor from you, plus +20% ammo per owned weapon	Concussion Rounds: +150% stumble power
25	ZED Time Penetrator: shots pierce any number of targets	ZED Time Barrage: near normal fire rate

Demolitionist

Demolitionist perk icon.

Bonuses. +1% damage per level for Demolitionist weapons; +1 explosive round every 5 levels; explosion damage resistance 10% at the start, +2% per level; one teammate can take one grenade per wave; doors you welded explode when broken; at lethal damage you release a strong blast and are left with 5 HP.

Level	Skill A	Skill B
5	Bombardier: +25% explosive damage	Shock Trooper: +20% reload speed, +25% knockdown and stumble
10	High Impact Rounds: +20% damage on a direct hit	Extra Rounds: +5 rounds
15	Sonic Resistant Rounds: Siren screams do not affect your explosives	Fragmentation Rounds: +50% blast radius, -30% damage
20	Armor Piercing Rounds: +50% damage on direct hits to weakpoints	Concussive Rounds: +50% stun, stumble and knockdown
25	ZED Time Destroyer of Worlds: radioactive blast poisons ZEDs, explodes at any range	ZED Time Mad Bomber: near real-time fire and reload, +25% blast radius

Firebug

Firebug perk icon.

Bonuses. +0.8% damage and +0.8% reload speed per level for Firebug weapons; fire resistance (enemy fire) starting at 30%, +2% per level; self-fire resistance starting at 25%, +3% per level; +10% starting ammo every 5 levels.

Level	Skill A	Skill B
5	Bring the Heat: +35% damage	High Capacity Fuel Tank: +100% magazine size
10	Barbecue: burning lasts 150% longer	Ground Fire: strongly boosts ground fire damage, slows ZEDs by 20%
15	Napalm: burning ZEDs ignite others, burn lasts 150% longer	Zed Shrapnel: 20% chance a burned-to-death ZED explodes and knocks others down
20	Heat Wave: ZEDs burned at point-blank are pushed away	Firestorm: longer range for all perk guns
25	ZED Time Pyromaniac: near real-time fire rate, unlimited ammo	ZED Time Inferno: burning ZEDs slowed 30% and take 50% more burn damage

Gunslinger

Gunslinger perk icon.

Bonuses. +1% damage per level; bullet resistance starting at 5%, +1% per level up to 30%; +0.8% move speed per level up to 20%; -1% recoil per level up to 25%; +3% reload speed in ZED Time per level up to 75%.

Level	Skill A	Skill B
5	Scoot 'n' Shoot: no move-speed penalty when zoomed, less camera shake	Quick Draw: less hip-fire recoil, +5% move speed, perk weapon swap 50% faster
10	Rack 'em Up: each headshot adds +10% damage to the next shot, stacking to +50%	Bone Breaker: +20% damage, +30% to arms and legs
15	Line 'em Up: piercing shots lose no damage on the next ZED	Speedloader: faster reloads
20	Skullcracker: headshots slow the ZED by 30%	Knock 'em Down: much stronger knockdown on leg hits and stumble on chest hits
25	ZED Time Whirlwind of Lead: unlimited ammo	ZED Time Fan Fire: fire three times as fast and reload in real time

Sharpshooter

Sharpshooter perk icon.

Bonuses. +1% headshot damage per level; -1% recoil per level up to 25%; +2% weapon swap speed per level up to 50%.

Level	Skill A	Skill B
5	Sniper: +25% damage while still, perk weapons only	Marksman: +25% fire speed, +10% move speed with perk weapon
10	Stability: while crouched, +30% damage, +50% move speed and +20% reload speed	Ballistic Shock: +100% stun power
15	Rack 'em Up (as Gunslinger)	Tactical Reload
20	Dead Eye: -10% recoil, +10% headshot damage when aiming	Always Prepared: +25% ammo and grenades
25	ZED Time Assassin: 5% chance a headshot extends ZED Time, +35% headshot damage	ZED Time Ranger: 5% chance to extend, headshots stun

SWAT

SWAT perk icon.

Bonuses. +1% damage per level; bullet resistance starting at 5%, +1% per level up to 30%; +4% magazine size per level up to 100%; +1% weapon swap speed per level up to 25%.

Level	Skill A	Skill B
5	Heavy Armor Training: while armored, damage cannot reach health except sonic, Clots cannot grab you, start with 50% armor	Tactical Movement: no speed loss when aiming or crouching
10	Close Combat Training: +110% damage to the 9mm and knife, start with dual pistols	Tactical Reload
15	Suppression Rounds: +100% stumble power	Ammo Vest: +30% ammo
20	Assault Armor: +50% total armor, start with 50% armor (stacks with Heavy Armor)	Cripple: many hits slow ZEDs by up to 30%, best on the legs
25	ZED Time Battering Ram: run at normal speed, strong knockdown on ramming	ZED Time Rapid Assault: unlimited ammo, normal-rate fire, +100% stumble

Survivalist

Survivalist perk icon.

Bonuses. +0.6% damage per level for all weapons; -1% damage taken per level up to 25%; +1% armor per level up to 25%; +3% reload speed in ZED Time per level up to 75%.

Level	Skill A	Skill B
5	Tactical Reload: faster reloads for Commando, Gunslinger and SWAT weapons	Heavy Weapon Training: faster reloads for Demolitionist, Sharpshooter and Support weapons
10	Medic Training: +20% medicine effect, -25% recharge time	Melee Expert: +15% attack speed, +10% damage, +25% walk speed with melee
15	Ammo Vest: +15% ammo, grenades become healing grenades	Weapon Harness: +5 carry weight, grenades become fire grenades
20	Spontaneous Zed-plosion: 20% chance ZEDs explode on death (10 damage), knocking others down	Make Things go Boom: +25% explosion radius
25	ZED Time Madman: fire three times as fast	ZED Time Lockdown: +200% stun, stumble and knockdown