-> Medic
    - Level 1
        ~ Symbiotic health:
            Horzine has supplied you with a special endorphin-based reward system, that supposed to boost your performance as a medic.
            Healing teammates will heal you 10% of your total health.
        ~ Aim assistance:
            To compensate for your relative lack of combat training you chose newest horzine equipment that improves it's user's aim.
            Zeds' critical points are 50% bigger for you.
    - Level 2
        ~ Armament
            Horzine supplies you with a grenades, capable of restoring your teammates' armor. Unfortunately they're too rare to just drop min-battle.
            Your grenades restore armor of the other players, but you can't refill them with ammoboxes.
        ~ Pesticide
            Replace some of the medication in your grenades with anti-zed pesticide, completely harmless to humans. Hopefully.
            Your grenades effect lasts only half the original time, but they drive small zeds to fight each other.
    - Level 3
        ~ Adrenaline shot:
            Attach to the syringes you shoot an adrenaline capsule that will surely help your teammates survive.
            Wounded players healed by you gain boost in speed (up to 100%) and damage resistance (up to 50%) for one second.
        ~ Regeneration
            Why must your teammates recieve all the healing? Then don't! Not if you take some of it tosupply your own life.
            You regenerate 1 hp per second.
    - Level 4
        ~ Injection:
            Side-product of horzine's experiments, that's capabale of granting a temporary boost to one's abilities. Should be carefully dosed to avoid... permanent changes.
            Once a wave your teammates can pickup a drug from you that will greatly boost their performance for 30 seconds, but suffer from withdrawal afterwards.
        ~ Tranquilizer:
            Replace some of your healing mixture with a drug that makes zeds more susceptible to pass out.
            Zeds hit by your darts can be stunned by head-damage, but your darts lose 25% of their healing efficiency.
    - Level 5
        ~ Heaven canceller:
            You're a medic, but sometimes you're outright a miracle worker:being able to save any lost case and turn the tables on your opponents. Sometimes.
            During zed-time your darts instantlyrestore health of your teammates and make them invincible for the duration.
        ~ Frenzy:
            Add a special elemnt to your compound that has a chance to messup zed's perception.
            Zeds hit by your darts during zed time will become rabid and attack anything indiscriminately.
-> Support
    - Level 1
        ~ Bombard:
            Make your shots more concentrated. The will cover less space, but willbe much more painful.
            Your perked weapons are 3 times as good at stunning, pellets have 50% less spread and slugs fly in straight trajectories.
        ~ Graze:
            Spread your shots out a bit. They'll covermore space and will be much more likely to hit something.
            Your perked projectile can hit zeds' extended head zone for 75% of damage even if they miss the normal one.
    - Level 2
        ~ Armory:
            Put in extra-care for your team-mates: carry an extra set of armored jackets for them in case they get their equipment damaged.
            Once per wave your team-mates will receive armored jacket when they run out of armor.
        ~ Slugs:
            Some prefer to cover area in pellets, so that nothing would escape them. You prefer to just fire it all in one huge lump of damage.
            Pellets shots replaced by slugs on shotguns.
    - Level 3
        ~ Obsessive:
            Lacking only a little bit of ammo in magazine or clip drives you nuts, which motivates you to reload as fast as possible.
            Reload 50% faster when you lack at most 35% of bullets in the magazine.
        ~ Cautious:
            You've equipped your grenades with proximity detector to make sure they wouldn't blow you up.
            Your grenades won't explode if you're too close to them.
    - Level 4
        ~ Multitasker:
            Don't waste any time and reload what you can and when you can.
            Reload holstered weapons at five times as much time.
        ~ Diversity:
            You prefer to prepare weapons for every possible situation. 
            Gain +5 weight slots.
    - Level 5
        ~ Bullet storm:
            Mod your weapons to allow them break pellets into even more pellets. Unfortunately this system is experimental and should only be used when it really matters.
            During zed time you fire seven times as much projectiles, that deal half as much damage.
        ~ Bore:
            Sometimes your shots mess up zeds' bodies way more than normal.
            During zed time your bullets' bounce between a zed's body and head 2 times before leaving it.
-> Sharpshooter
    - Level 1
        ~ Backup:
            Broaden your horizons and learn to use some lighter weapons. They aren't as devastating, but are always ready for the action.
            With light (less than 3 pounds) firearms you reload 50% faster and all zeds decapitated by you drop after 1 second at most.
        ~ Laceration:
            Concentrate on dealing more damage but in a different way. Not only damage critical point, but learn to tear enemy's whole body apart in the process.
            Gain double body destruction damage bonus on head-shots.
    - Level 2
        ~ Talent:
            Your talent allows you to do insane shots that deal way more damage than normally possible.
            You gain additional 30% headshot damage bonus.
        ~ Hard work:
            Through hard work you've became way better at handling your guns.
            Reload 50% faster, shoot 30% faster and recoil only for half as much. Additionally, you can switch to/from iron sights twice as fast and zoom 25% further while crouched.
    - Level 3
        ~ Surgical precision:
            You have honed your skills to the point where you can avoid hitting hard parts of zeds' skulls and make your bullets pass through them like through a jelly.
            While you're aiming down sights your bullets and projectiles penetrate heads without any damage loss on head-shots.
        ~ Skull cracker:
            Armed with superior aim and head anatomy knowledge you can crack skulls in such a way, that fragments can damage other zeds. But these kind of shots are harder to get right.
            Head-shots against tough and healthy enough enemies can cause other, close-by zeds to suffr head damage, but scoring them becomes harder.
    - Level 4
        ~ Kill confirmed:
            You prefer not to rush and take your time preparing each shot to perfection.
            Aiming at zed's head increases damage you'll deal, by 100% per stack (up to 300%). Faster shooting weapons accumulate stack faster.
        ~ Reaper:
            You don't like to take your time and concentrate on bringing your targets down as soon as possible.
            If it would take 2 head-shot to kill the zed, - it'll die from one.
    - Level 5
        ~ Overkill:
            In a state of heightened senses your aiming improves so much that you can hit critical point within a critical point.
            Deal 225% head-shot damage during zed-time.
        ~ Railgun:
            At times you can choose bullet trajectory that allows your shots to pass through softest portions of every zed they encounters without losing any speed.
            Your bullets pass through everything without losing damage during zed-time.
-> Commando
    - Level 1
        ~ Strategist:
            Collect and share information about what's happening on the battlefield.
            Your teammates can see enemies' health and invisible zeds from 16 meters. Your detection distance for invisible zeds doubles.
        ~ Tactician:
            Help your team to get through pitched battles by preparing them (and yourself) to make quicker decisions.
            Gain two additional zed-time extentions.
    - Level 2
        ~ Critical focus:
            When everything goes to hell, it's important that you give it your all to overcome a dire situation.
            Activates zed-time when your health drops below 50 HP. Has a cool-down of 30 seconds.
        ~ Trash cleaner:
            Before dealing with larger threats one must first clear out the horde by learning to strike them down at first sign of weakness.
            Get finisher property on your shots against low-health zeds.
    - Level 3
        ~ Larger mags:
            Be cautious, - mod your weapons to have larger mags to avoid running out of ammo during battle as much as possible.
            50% larger assault rifles' magazines.
        ~ Explosive power:
            Be aggressive, - mod your weapons with new burst fire system that allows you to make much more powerful shots.
            Burst fire deals 20% more damage and has reduced delay between shots.
    - Level 4
        ~ Perfect execution:
            A huge, dangerous enemy got mad and is charging at you? All part of your plan. All that's left is to calmly and quickly follow it through.
            Raging scrake or fleshpound activates zed-time.
        ~ Thin out:
            Horde of bigger zeds can be extremely dangerous, but also way too careless. Use that to your advantage to dish out devastating amounts of damage.
            Deal double damage against non-trash zeds, when there's either a huge zed or another zed of the same type within 16 meters of you.
    - Level 5
        ~ Professional:
            Reloading during critical moment is a wasted opportunity and you won't allow it.
            Your reloads aren't slowed down during zed-time.
        ~ Evisceration:
            Sometimes you manage to concentrate on zed extermination enough for your performance to suddenly skyrocket.
            During zed-time both 'Trash cleaner' and 'Thin out' skills are active.
-> Berserker
    - Level 1
        ~ Wind cutter:
            Your lightning-fast thrusts allow you to quickly strike your target and immediately fall back, making it look like you're cutting up your enemies with shock-waves.
            Increase your reach with melee-weapons by 50%.
        ~ Cleave:
            Instead of fast and precise attacks you prefer wide ones, that can hit several targets at once.
            Add 30 degrees to wide attacks with melee weapons.
    - Level 2
        ~ Whirlwind:
            Move twice as fast during invincibility.
            You don't like to be surrounded, so in battles you tend to keep your distance and be out-fighter.
        ~ Fury:
            You don't like running away, so in battles you tend to hack and slash until you're the only one standing.
            Attack 50% faster during invincibility.
    - Level 3
        ~ Colossus:
            When others would've fallen - you keep standing, completely out of reach for a mere fodder.
            Double the invincibility period.
        ~ Gunzerker:
            Limiting yourself to a melee weapons in the age of guns is ridiculous, so you try your best to make them fit your fighting style.
            You're able to activate melee-invincibility with non-melee head-shots, but your misses are punished by a cool-down, during which you cannot activate invincibility.
    - Level 4
        ~ Vorpal blade:
            You like clean victories and can put your everything in the first blow.
            Your head-shot deals double damage on your first invincibility extension against the zed.
        ~ Undead:
            You don't let small hiccups stop you and just keep pressing on.
            First melee-miss during invincibility period won't reset it.
    - Level 5
        ~ Accelerate:
            Occasionally your mind goes blank and you move on pure reflexes, exceeding your normal reaction time and speed.
            Move and attack at the same speed during zed-time.
        ~ Unbreakable:
            At critical times you're able to collect yourself and brush off all and any damage.
            You resist all damage during zed time.
-> Demolitionist
    - Level 1
        ~ Onperk:
            Concentrate on your strong side and get some additional propelling power to your main weapons.
            Deal 20% more damage with your blunts and make your perk weapon's projectiles fly 50% faster.
        ~ Offperk:
            Cover up your weaknesses and get accustomed with some secondary weapons to get you out of a tough spot.
            Reload light weapons (less than 5 pounds) 25% faster and do 25% more damage with them.
    - Level 2
        ~ Direct approach:
            How to make your weapons hit harder? Just allow them to hit before they explode!
            Your explosives will first hit target zed as a blunt before exploding.
        ~ Volatile:
            Change up the fillings of your explosives to one much more destructive, but also way more dangerous.
            Safe range for your explosives is halved and explosion damage experiences smaller fall off.
    - Level 3
        ~ Reactive armor:
            Clad yourself in experimental horzine protection suit that's supposed to clear up some space when you're about to die.
            Once per wave your death will be prevented, while zeds all around you will be blown to bits.
        ~ Concussion:
            Learn to disable zeds for longer times, giving you a much needed time to finish them off.
            You stun zeds for twice longer time than usual.
    - Level 4
        ~ AP shot:
            Start using a new type of rounds that can't be stopped by a bulky target, but will rather penetrate and lay waste behind it.
            Deal full blast damage behind the target you've hit.
        ~ Maniac:
            No need for fancy new tech, you just want to kill things as fast as possible.
            Reload 50% faster for 5 seconds after killing something.
    - Level 5
        ~ Duck and cover:
            There are rare times when your safety training REALLY pays off. To the point where you can safely detonate a grenade right under your feet.
            During zed time you can't deal yourself any damage.
        ~ Full blast:
            At times you need to use more than just normal explosives. Good thing that you have a set of limited ammunition that is up for the task.
            During zed time your explosions have 35% larger radius and their damage doesn't suffer from a fall off.
-> Gunslinger
    - Level 1
        ~ Consistency:
            You're good at what you do and is able to deal consistently more damage than others.
            Deal 60% more damage with pistols.
        ~ Ardour:
            You derive your pleasure from the perfect kills and can deal some crazy damage when you get into it. But any failure throws you off completely.
            Reload 30% faster and deal 50% more damage with pistols with each head-shot, up to 5x damage. But missing a head-shot prevents you from dealing perked damage with current weapon for 10 seconds.
    - Level 2
        ~ Playful:
            Click-click-click and zeds' heads are gone. The faster you go, the faster you get.
            Gain +15% fire speed with pistols for each head-shot within 1 second of the previous one.
        ~ Confident:
            Filling fine and strong gives you confidence that allows you to reload relying almost purely on reflexes. But serious injury can really screw you up.
            Your reload speed is health-dependent. Gain double reload speed with pistols at full health, but only half of it when you're below 25 health.
    - Level 3
        ~ Adrenaline junkie:
            You enjoy the thrills, times when your senses get heightened, and your good performance during these times makes these moments seem to last forever.
            Prolong zed-time by making head-shots. Each consecutive extension requires 1 more head-shot than a previous one. Body-shotting removes your ability to prolong zed-time.
        ~ Close and personal:
            You prefer to deal with your enemies up close. That way you can deal way more damage, but you also suffer way more.
            All your shots count as angled when firing at close enemy, but enemies 50% more damage to you up close.
    - Level 4
        ~ Momentum
            Piling up perfect kills with your guns just makes you want to kill more. And your elite reload skills can match that thirst.
            Reload 10% faster for each consecutive head-shot up to +100%. Body-shots take you a step back.
        ~ Streak:
            Usually you aren't all that enthusiastic, but having a streak on the line can get you pretty invested in the face-shooting business.
            Get +/-5% to damage and head-shot multiplier for each consecutive head-shot/miss, up to 5 stacks in either direction.
    - Level 5
        ~ Hundred Gauntlets:
            At times you can pull off a neat trick - load up a bullet right after firing it. Just make sure your opponent doesn't see how you do it. Shooting it in the face would prevent that.
            Don't waste ammo during zed-time.
        ~ Aim or die:
            Once in a while you get especially cocky and start shooting while performing cool tricks with your pistols. This leads to some amazingly devastating shots as long as you don't shoot yourself.
            Override level 1 skills' effects and grant 5x damage boost during zed-time on head-shots. But deal 20% of unperked damage to yourself on body-shots.
-> Heavy Machinegunner
    - Level 1
        ~ Unstoppable:
            Normally you're less mobile than your teammates, but even a pair of broken legs might not be enough to slow you down any more than that.
            Your speed doesn't decrease from additional weight, low health, poison or siren's pull, but you also receive -25% speed penalty.
        ~ Unshakable:
            Be precise when others can only spray 'n pray - it takes something really huge to budge you.
            Your screen doesn't shake or blur, and you gain 15% resistance to all damage.
    - Level 2
        ~ Stable position:
            Why run somewhere, when you can just settle down at this sweet spot? Once you get more comfortable, - it'll be easier to shoot.
            Each half-second you're crouching and now moving - you gain 10% recoil dampening bonus.
        ~ Overclocking:
            You hate to get into dangerous situations, so you overclock all your specialty guns to maximize their performance.
            +30% fire speed with perked weapons.
    - Level 3
        ~ Determination:
            In life or death situation you always show unwavering spirit and resolve to pull through.
            Receive 50% less damage when your health falls below 50 mark.
        ~ Full counter:
            Equip a prototype horzine force-field generator. It takes some time to build-up and dissipates after several hits, but when it works - it is worth it.
            Gives you 5 protection layers, each of which can block a weak hit. One layer restores 15 seconds after you've been hit. Almost ineffective against strong attacks or attacks of huge enough zeds.
    - Level 4
        ~ Coating:
            If you want to survive you'd better put on as much protective gear as you can, so that it would account for every attack that can be possibly thrown at you. Especially against the ones you expect.
            You get immunity from fire and electricity for as long as you wear armor, and your armor can absorb damage from every source.
        ~ Safeguard:
            Everyone knows that armor and medics are useless, so don't rely on them - equip newest portable life support system instead!
            Your armor no longer protects you, but it heals you when your health falls too low.
    - Level 5
        ~ Iron grip:
            In critical moments you can grasp all your strength and hold firmly any gun, as if it's a peashooter, withstanding even it's extreme overclocking.
            Shoot at full speed and without any recoil during zed-time.
        ~ Juggernaut:
            You're tough, heavy and have some big guns. At times, even zeds are afraid of you.
            You startle zeds around you upon entering zed-time.
-----------------------------
-> Firebug
    - Level 1
        ~ Combustion:
            Guaranteed setting zeds on fire OR insta tick(s) for no cost.
        ~ Panic:
            Panicing zeds try to get away from you.
    - Level 2
        ~ Grilled:
            Faster zed burning and even faster crisping up.
        ~ Excrutiating pain:
            Reaching temperature above 100 prevents zeds from attacking / stuns them.
    - Level 3
        ~ ???:
            +30% damage bonus for non-fire component for perked weapons.
        ~ Fuel:
            Lower fuel waste + better heat tick damage.
    - Level 4
        ~ Fireproof:
            +60% fire resistance.
        ~ Hellfire:
            Your fire component bypasses all resistances against burned zeds.
    - Level 5
        ~ Fire judgement:
            Zeds burn at the same speed during zed time and don't waste fuel.
        ~ Blazing hell:
            All zeds near you are set on fire, the ones attacking you receive heat level of 100.
-> New sharpshooter
    - Level 1
        ~ Backup:
            100% faster reload with all small weapons (<= 3 pounds) + all decapitated zeds drop after 1.0 second at most
        ~ Laceration:
            100% more damage to body on head-shots
    - Level 2
        ~ Hard work:
            The slower you are, the faster you reload, up to 60% when you're still + faster zooming and better zoom while crouched
        ~ Talent:
            Each head-shot causes secondary damage of x% + all weapons have laser sights on them
    - Level 3
        ~ Syrgical precision:
            Your weapons penetrate zed's heads with no damage loss
        ~ Skull cracker:
            Headshots send small skull pieces that deal small damage (possibly blinding them) to nearby zeds, but you must be extra precise for heashots to count as such
    - Level 4
        ~ Kill confirmed
            Aiming at the head multiplies damage
        ~ Reaper
            Doubles head damage against zed if it would kill it
    - Level 5
        ~ Tier finale
            Deal 100% more headshot damage during zed-time
        ~ Railgun
            Your shots penetrate anything they pass, doubling damage on each penetration and headshot.
    - Other
        ~ Pick Off
            Deal additional damage to lone target / or to far way target when other zeds are near / furtherst visible zed
-> New gunslinger
    + sticky nades
        ~ Skill 1:
            Level up your stats
        ~ Skill 2:
            Level up your weapons
        ~ Skill 3:
            Ardour
        ~ Skill 4:
            Raise damage stack for each headshot kill, decrease it for each miss
        ~ Skill 5:
            Close and personal: take more damage from close attacks, but also deal angled shots at close distance; your bullets gain +1 penetration and can bounce off the ground
        ~ Skill 6:
            Smoking guns: ???
        ~ Skill 7:
            Playful: stack that gives fire speed, increases with fast and clean kills, decreases with time
        ~ Skill 8:
            Confident: faster reload at higher health, slower at low health
        ~ Skill ZED:
            One hundred gauntlet: infinite ammo on headshots
        ~ Skill ZED
            Jumping bullet: inzed time your bullets travel between severl terget's heads
        ~ Skill 9:
            Double tap: fast enough second shot deals extra damage
        ~ Skill 10:
            Ignore first attack aginst you from any zed, but recieve more damage in general
        ~ Skill 11:
            Stopping power: flinching zed resets it's speed
-> New brutegunner:
    + freeze nades
    - Level 1
        ~ Stable position:
            Reduce recoil while croutched and stationary (accelerate by headshotting) up to 0.
        ~ Overclocking:
            Increase fire rate of your weapons at the risk of overheating them (can be solved via freeze nades)
    - Level 2
        ~ Full counter:
            5 layers of damage absorb, regenerate with time
        ~ General winter:
            You retaliate zeds' attack by freezing them in place; can be temporarily extinguished, recharges with time
    - Level 3
        ~ Coating:
            Gain immunity from fire and electricity while wearing armor
        ~ Safeguard:
            Armor doesnt protect you, but restores your health instead
    - Level 4
        ~ Deeply frozen:
            Breaking your ice crust causes massive damage to the zeds
        ~ Solidifying agent:
            Freeze zeds faster and make your crust stronger
    - Level 5
        ~ Juggernaut:
            Zeds closeto you get stunned, others run away
        ~ Barrage:
            Shoot in the real time
    - Other
        ~ First shot:
            Deal 100% more damage to the zed for the first time
-> New berserker:
    + resonance nades
        - Only gain 100% melee damage bonus during ininvulnerability
        ~ Skill 1:
            Gunzerker: you now can 'fail' invincibility, but during it you gain +25% damage with all weapons
        ~ Skill 2:
            Vampirism: restore health for killing zeds
        ~ Skill 3:
            Focus: your screen never shakes
        ~ Skill 4:
            Survivalist: gain period of decreasing resistances after invulnerability
        ~ Skill 5:
            Bloodlust: spending enough time in invulnerability makes it unresettable for a period of time and let's any weapon trigger all possible effects + activates zed-time; has recharge time
        ~ Skill 6:
            Melee: +melee damage and double the invincibility duration
        ~ Skill 7:
        ~ Skill 8:
-> New commando:
    + stun nades
        ~ Skill 1:
            + 5 zed-time extentions for you and +1 for your team-mates
        ~ Skill 2:
            Adrenaline junkie
        ~ Skill 3:
            Thin out
        ~ Skill 4:
            Perfect execution
        ~ Skill 5:
            Tactical reload: holding reload button auto-ditches all ammo in the magazine to speed-up reload by 100%; auto-applies to empty mags + get larger mags
        ~ Skill 6:
            Quick tapping: starting auto-fire via head-shot causes 0.5 second delay, during which player will shoot as soon as he points at zed's head
        ~ Skill 7:
        ~ Skill 8:
    - Small bonuses:
        ~ 1: share invisible enemies and health bars
        ~ 2: your speed doesn't slow down no matter what (health / croutching)
        ~ 3: doubles your detection range
        ~ 4: hit maker
        ~ 5: awareness of zeds from behind
        ~ 6: make active reload easier/more efficient
        ~ 7: give bonus speed near you
->New support:
    + Free armor by default
    - Level 1
        ~ Graze:
            Your shots that pass 'near enough' zed's head deal it x% of damage
        ~ Bombard:
            Boost stun score by x%, your pellets have 50% spread reduction and your slugs fly in straigh trajectories
    - Level 2
    - Level 3
        ~ Delayed grenades
            Nades don't explode near you
    - Level 4
        ~ Diversity:
            +5 carry weight
        ~ Multitasker:
            Autoreload holstered weapons
    - Level 5
        AS-IS
    - Small bonuses:
        ~ No speed reduction for weight
-> New demo
    + sticky nades
        ~ Skill 1:
            Blunts damage and flight speed
        ~ Skill 2:
            Volatile???
        ~ Skill 3:
            Reactive armor
        ~ Skill 4:
            Concussion
        ~ Skill 5:
            Maniac
        ~ Skill 6:
            Evironmental shrapnel
        ~ Skill 7:
            The harder they fall: +dmg for high explosions points
        ~ Skill 8:
            Fatman
        ~ Skill 9:
            On contact + faster nade throwing