Forum post link - http://steamoss.com/app/222900/discussions/0/612823460251864593/

This guide will list all current modifications in the game along with their relevant stats. For those players that do not have all the modifications, this should be helpful to find out which ones you are missing. If you notice any errors, feel free to comment here or message me!

Note: This contains all the new mods added in the January 29th update!

Chart of the total number of modifications of each tier.

TrashCat™

Also, feel free to check out my Crossroads Guide:
http://steamoss.com/sharedfiles/filedetails/?id=371860367

Acrobatics
Dodging has a chance to instantly reset your dodge cooldown.

• Trigger Chance: 25%

Aegis
When your health drops below a certain amount you gain a shield that is based on your maximum health.

• Percent of Max Health: 15%
• Shield Absorb: 15%
• Duration 10 seconds
• Cooldown: 120 seconds

Bastion
Blocking absorbs additional damage.

• Reduced Damage Taken: 10%

Critical Advantage
Primary critical strikes restore health based on damage dealt.

• Leech: 33%

Elite Slayer
Increases damage dealt to Elite Zombies.

• Bonus Damage: 25%

Executioner
Killing an enemy player reduces all your skill cooldowns and increases your damage output.

• Cooldown Reduction: 3 seconds
• Damage Multiplier: 15%
• Duration: 6 seconds

Frenzy
Your damage output is increased when your rage bar reaches its maximum capacity.

• Damage Multiplier: 10%
• Duration: 5 seconds

Healing Focus
Using a regular skill heals you based on the skill's base cool down.

• Healing: 2%

Lethal Attacks
Critical strikes deal even more damage.

• Bonus Damage: 15%

Obsession
You are healed for a percentage of your maximum health every time your rage bar is filled to maximum.

• Healing: 5%

Sentinel
Whenever you leech health with your weapon attacks, a part of the leeched amount will shield you. The shield's maximum capacity is based on your health. Duration of the shield is renewed every time you leech health.

• Shield Absorb: 25%
• Duration: 60 seconds
• Maximum health: 2%

Shadow Strike
Your next primary attack after dodging deals bonus damage.

• Bonus Damage: 75%
• DUration: 6 seconds

Supplier
Delivering supplies increases your Max Health and Damage output per supply delivered. The effect is removed on death.

• Health and Damage per Supply: 0.1%
• Max Stacks: 100

Survival Adaptation
You have a chance to survive a fatal blow; when you do, you instantly heal a portion of your maximum health.

• Trigger Chance: 100%
• Healing: 15%
• Cooldown: 240 seconds

Titanium Deflector
You have a chance to resist stuns, incapacitation, and silence debuffs.

• Trigger Chance: 25%

Ultimate Recharger
Reduces cooldown of your ultimate skill.

• Cooldown Reduction: 15%

Vampire
Blocking an attack has a chance to increase your life leech.

• Trigger Chance: 25%
• Bonus Life Leech: 25%
• Duration: 4 seconds

Zombie Slayer
Damage taken from zombie attacks is reduced, and you deal increased damage to all zombies.

• Reduced Damage Taken: 10%
• Bonus Damage: 5%

Anger Management
Blocking an attack has a chance to increase your fury generation and critical strike chance.

• Trigger Chance: 25%
• Rage Generation Increase: 33%
• Bonus Critical Chance: 33%
• Duration: 4 seconds

Annihilator
Rage generation from weapon attacks is reduced but your secondary attacks deal increased damage.

• Reduced Rage Generation: 40%
• Damage Multiplier: 15%

Concentration
Using regular skills generates rage based on the cooldown of the used skill.

• Rage per base Cooldown: 1%

Deadly Robber
Killing an enemy player awards you with bonus supplies and increased movement speed (does not stack with Bounty Hunter perk).

• Supplies: 5
• Bonus Movement Speed: 20%
• Duration: 4 seconds

Deflect
Blocking has a chance to Disarm the enemy.

• Trigger Chance: 15%
• Disarm: 1.5 seconds

Demolisher
Critical Strike damage is increased and your chances of scoring a critical hit is increased when attacking Barricades and Hoarders.

• Bonus Critical Strike: 30%
• Critical Strike Damage: 5%

Gladiator
Whenever you score a critical hit your attack speed is increased.

• Increased Attack Speed 6%
• Duration: 3 seconds

Guardian Angel
Damage dealt to you while being stunned, incapacitated, or feared is reduced.

• Reduced Damage Taken: 25%

Initiator
Damage dealt to healthy targets will deal additional bonus damage.

• Percent of Max Health: 80%
• Bonus Damage: 15%

Loosen Up
Whenever you use up your rage bars you have a chance per rage bar to increase your attack speed.

• Chance per Rage Bar: 33%
• Increased Attack Speed: 10%
• Duration: 3 seconds

Marathon
Dodging has a chance to increase your movement speed.

• Trigger Chance: 25%
• Haste: 25%
• Duration: 3 seconds

Mind Resister
Reduce the duration of Fear, Panic Shot, and Taunt debuffs.

• Reduced Duration: 40%

Momentum
Dodging increases your critical strike chance.

• Bonus Critical Chance: 25%
• Duration: 3 seconds

Neutralizing Escape
Dodging has a chance to dispel lesser debuffs on you.

• Trigger Chance: 33%

Nomad
Your next regular skill used after dodging will have its cooldown reduced.

• Cooldown Reduction: 25%
• Duration: 4 seconds

Shipper
Movement speed reduction when Overburden is reduced.

• Bonus Movement Speed: 8%

Slaughterer
Zombie kills yield more experience.

• Bonus Experience: 10%

Slow Resister
Reduces the duration of slow and immobilize debuffs.

• Reduced Duration: 40%

Specialist
Increases damage dealt to special zombies.

• Bonus Damage: 15%

Stun Resister
Reduces the duration of stun and incapacitate debuffs.

• Reduced Duration: 40%

Surprise
If you are killed when carrying lots of supplies, you will mix a small supply bomb among the dropped supplies.

• Supplies: 50

Boost: Attack Speed
Your Attack Speed rating is boosted per in game level.

• Bonus Rating: 3

Boost: Block
Your Block rating is boosted per in game level.

• Bonus Rating: 3

Boost: Critical Strike
Your Critical Strike rating is boosted per in game level.

• Bonus Rating: 3

Boost: Defense
Your Defense rating is boosted per in game level.

• Bonus Rating: 3

Boost: Focus
Your Focus rating is boosted per in game level.

• Bonus Rating: 3

Boost: Fury
Your Fury rating is boosted per in game level.

• Bonus Rating: 3

Boost: Life Leech
Your Life Leech rating is boosted per in game level.

• Bonus Rating: 3

Boost: Stamina
Your Stamina rating is boosted per in game level.

• Bonus Rating: 3

Bounty Hunter
Killing an enemy player instantly grants you supplies.

• Supplies: 5

Carrier
Reduces amplified damage from supplies carried.

• Amplify Reduction: 25%

Charge: Attack Speed
Your Attack Speed rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Block
Your Block rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Critical Strike
Your Critical Strike rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Defense
Your Defense rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Focus
Your Focus rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Fury
Your Fury rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Life Leech
Your Life Leech rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Charge: Stamina
Your Stamina rating is boosted when you kill an enemy. The effect is lost upon your death.

• Bonus Rating: 3
• Max Stacks: 15

Combat Reduction
Killing another player heals you for a percentage of your maximum health.

• Healing: 12%

Emissary
When you are Overburdened, you deal increased damage.

• Bonus Damage: 15%

Friendly Touch
Dodging through an ally heals them for a percentage of their maximum health.

• Healing: 5%

Greed
Your life leech rating is boosted for each supply carried.

• Life Leech Rating: 2

Infected Hunter
Increases damage dealt to Infected Zombies.

• Bonus Damage: 15%

Killer Instinct
Killing special zombies or hostile players reduces the cooldown of your skills.

• Cooldown Reduction: 2 seconds

Manslayer
In game experience gained from killing hostile players is increased.

• Bonus Experience: 15%

Moving On
Dodging heals you for a percentage of your maximum health.

• Healing: 2%

Riposte
Blocking has a chance to retaliate, dealing damage to the attacker.

• Trigger Chance: 20%
• Damage: 50%

Time Out
Delivering supplies heals you a percentage of your maximum health per supply delivered.

• Healing: 2%

Unloader
Experience received from delivering supplies is increased.

• Bonus Experience: 25%

Walker Slayer
Primary attacks have a chance to deal increased damage to Walkers.

• Trigger Chance: 15%
• Damage Multiplier: 3x

Avenger
Fury generation is increased when a nearby ally is killed by an enemy player.

• Rage Generation Increase: 60%
• Duration: 15 seconds

Blood Rush
You are healed a percentage of your maximum health as you level up.

• Healing: 30%

Chaser
Your movement speed is increased when you use a skill.

• Bonus Movement Speed: 10%
• Duration: 1.2 seconds

Courier
Delivering supplies temporary increases your stamina per supply delivered.

• Stamina Rating Bonus: 2
• Duration: 12 seconds
• Max Stacks: 100

Energy Rush
Your dodge cooldown is reset and you generate full rage as you level up.

• Rage: 100%

Furious Return
You respawn with rage and increased movement speed.

• Rage Bars: 3
• Bonus Movement Speed: 15%
• Duration: 8 seconds

Martial Artist
Dodging through enemies deals damage to them.

• Damage: 33%

Parry
Your block chance is increased as you level up.

• Increased Block
• Duration: 30 seconds

Postman
You deliver supplies by the truck faster.

• Delivery Speed: 40%

Quick Step
Your movement speed is increased as you level up.

• Bonus Movement Speed: 10%
• Duration: 30 seconds

Shocking Escape
Dodging through an enemy has a chance to shock and stun them.

• Trigger Chance: 25%
• Stun: 0.8 seconds

Splendor
Causes a blast that deals damage and knocks enemies back as you level up.

• Area Damage: 200%

Swift Reflexes
Your focus rating is increased as you level up.

• Focus Rating Bonus: 100
• Duration: 30 seconds

Cleave Shield
Reduces damage taken from the Butcher's cleave attacks.

• Reduced Damage Taken: 50%

Ear Muffs
Reduces the duration of Screamer's fear scream.

• Reduced Duration: 25%

Extra Plating
Reduces damage taken from Floater's acid attacks.

• Reduced Damage Taken: 50%

Hoarder Analyzer
You gain more experience from killing Hoarders.

• Bonus Experience: 20%

Hoarder Slayer
Primary attacks deal more damage to Hoarders.

• Bonus Damage 25%

Hoarder Tank
Damage dealt by Hoarders to you is decreased.

• Reduced Damage Taken: 25%

Scissors
Reduces the duration of Puller's tongue attacks.

• Reduced Duration: 25%

Scratch Shield
Reduces damage taken from Walkers.

• Reduced Damage Taken: 20%

Underdog
Primary attacks deal increased damage to hostile players that are at a higher level.

• Bonus Damage: 20%

Walker Cutter
Increases damage dealt to Walkers.

• Bonus Damage: 10%

Wall
Reduces damage taken from Ram's charge attack.

• Reduced Damage Taken: 50%

Wrecker
Primary attacks deal increased damage to barricades.

• Bonus Damage: 25%