Class Mod (Borderlands)

A major item in Borderlands, obtained at around level 20, Class Mods are class specific upgrades that amplify your damage, heal you and your teammates, increase your health and/or shield capacity, reduce your reload speeds, increase skill ranks, etc.

Class Mods do stack even if the specified Skills are maxed (5/5), but skill bonuses will not function unless you have at least 1 point in the specified skill.

They can be bought at Health Stations, found in chests, skag piles, garbage piles or are dropped by enemies.

Catalyst

 * +16% - 30% Team Cooldown Reduction
 * +0 - +4 Phoenix Skill
 * +0 - +4 Girl Power Skill
 * +0 - +4 Intuition Skill
 * +0 - +4 Chance to find rare items
 * +0 - +4 Team Shield Regeneration

Defender

 * +18% - +42% Team Shield Capacity
 * +0 - +4 Resilience Skill
 * +0 - +4 Diva Skill
 * +0 - +4 Inner Glow Skill
 * +0% - +36% Team Ignite Resistance
 * +0% - +33% Team Corrosive Resistance

Firefly

 * +28% - +56% Ignite Damage
 * +0 - +4 Spark Skill
 * +0 - +4 Phoenix Skill
 * +0 - +4 Diva Skill
 * +0% - +36% Elemental Effect chance
 * +0% - +78% Ignite Resistance

Mercenary

 * +24% - +56% SMG Damage
 * +0 - +3 Quicksilver Skill
 * +0 - +4 High Velocity Skill
 * +0 - +4 Girl Power Skill
 * +0% - +33% SMG Elemental Effect chance
 * +0 - +23 SMG Ammo Regen

PlagueBearer

 * +32% - +56% Corrode Damage
 * +0 - +4 Venom Skill
 * +0 - +4 Inner Glow Skill
 * +0 - +4 Mind Games Skill
 * +0% - +36% Corrosive Elemental Effect Chance
 * +0% - +78% Corrosive Resistance

Tempest

 * +28% - +56% Electrocute Damage
 * +0 - +4 Radiance Skill
 * +0 - +4 Slayer Skill
 * +0 - +4 Silent Resolve Skill
 * +0% - +48% Shock Chance Resistance

Tormentor

 * +27% - +39% Team Elemental Effect Chance
 * +0 - +4 Spark Skill
 * +0 - +4 Radiance Skill
 * +0 - +4 Striking Skill
 * +0% - +33% Team Elemental Effect damage
 * +0% - +??% Team Damage

Commando
The Commando class mod focuses on the use of shotguns and abilities that compliment the use thereof.


 * +0% - +??% Shotgun Damage
 * +0% - +70% Shotgun Fire Rate
 * +0 - +4 Scattershot Skill
 * +0 - +4 Defense Skill
 * +0 - +4 Quick Charge Skill
 * +0 - +15 Shotgun Ammo Regeneration

Heavy Gunner
A properly built Soldier with a Heavy Gunner pack can unleash a devastating storm of weapons fire once they get started.


 * +0% - +75% Weapon Magazine Size
 * +0 - +4 Impact Skill
 * +0 - +4 Overload Skill
 * +0 - +4 Metal Storm Skill
 * +0% - +35% Weapon Damage
 * +0% - +60% Weapon Fire Rate

Leader
Leader class mods are focused around boosting team experience gains, action skill cooldowns, and the rate at which you can deploy the Scorpio turret. It can also boost the Soldier's own defensive abilities.


 * +0% - +24% Team Extra Experience
 * +0 - +4 Deploy Skill
 * +0 - +4 Grit Skill
 * +0 - +4 Defense Skill
 * -0% - -26% Team Recharge Delay
 * +0% - +20% Team Recoil Reduction

Rifleman
Unsurprisingly, the Rifleman packs focus on soldiers using combat rifles, favoring the smaller magazine battle rifle types rather than the machineguns, however.


 * +0% - +42% Combat Rifle Damage
 * +0 - +4 Assault Skill
 * +0 - +4 Overload Skill
 * +0 - +4 Impact Skill
 * +0 - +11 Combat Rifle Ammo Regeneration
 * +0% - +180% Combat Rifle Recoil Reduction

Shock Trooper
The Shock Trooper mod focuses on electrical damage and grenade attacks, as well as boosted health.


 * +36% - +56% Electrocute Damage
 * +0 - +4 Fitness Skill
 * +0 - +4 Grenadier Skill
 * +0 - +4 Refire Skill
 * +0% - +78% Shock Chance Resistance

Support Gunner
The Support Gunner pack is an excellent solo and team mod thanks to ammo regeneration and increased team magazine sizes. They are very useful (perhaps even vital) to those using ammo-hogging machinegun-type Combat Rifles.


 * +2 - +20 Team Ammo Regeneration
 * +0 - +4 Stockpile Skill
 * +0 - +4 Impact Skill
 * +0 - +4 Barrage Skill
 * +0% - +39% Team Magazine Size
 * +0% - +36% Team Accuracy

Tactician
Tactician mods are good for supporting soldiers, and can also increase your own survivability considerably.


 * +1 - +20 Team Shield Regeneration
 * +0 - +4 Defense Skill
 * +0 - +4 Aid Station Skill
 * +0 - +4 Quick Charge Skill
 * +0 - +5 Team Health Regeneration

Berserker

 * +48% - +84% Melee Damage
 * +0 - +4 Endless Rage Skill
 * +0 - +4 Heavy Handed Skill
 * +0 - +4 Blood Sport Skill
 * +0% - +36% Maximum Health
 * -0% - -33% Bullet Damage Resistance
 * +0 - +10 Team Health Regeneration



Blast Master

 * +28% - +60% Explosive Impact Damage
 * +0 - +3 Liquidate Skill
 * +0 - +3 Revenge Skill
 * +0 - +4 Master Blaster Skill
 * +0% - +39% Elemental Effect chance



Bombardier

 * +24% - +42% Launcher Reload Speed
 * +0 - +4 Endowed Skill
 * +0 - +4 Rapid Reload Skill
 * +0 - +4 Wide Load Skill
 * +0 - +19 Launcher Ammo Regeneration
 * +0% - +52% Launcher Fire Rate



Centurion

 * +24% - +52% Team Maximum Health
 * +0 - +4 Safeguard Skill
 * +0 - +4 Hardened Skill
 * +0 - +4 Die Hard Skill
 * +0 - +? Team Health Regeneration



Skirmisher

 * +32% - +56% Team Melee Damage
 * +0 - +4 Short Fuse Skill
 * +0 - +4 Sting Like a Bee Skill
 * +0 - +4 Bash Skill
 * +0% - +??% Team Maximum Health
 * -0% - -52% Team Melee Damage Resistance



Titan

 * +40% - +52% Maximum Health
 * +0 - +3 Juggernaut Skill
 * +0 - +3 Unbreakable Skill
 * +0 - +4 Safeguard Skill
 * +0 - +1 Health Regeneration



Warmonger

 * +18% - +30% Team Damage
 * +0 - +4 Pay Back Skill
 * +0 - +4 Hardened Skill
 * +0 - +4 Revenge Skill
 * +0% - +33% Team Grenade Damage
 * +0% - +30% Team Melee Damage

Assassin

 * +28% - +60% Corrode Damage
 * +0 - +4 Deadly Skill
 * +0 - +4 Lethal Strike Skill
 * +0 - +4 Killer Skill
 * +0% - +89% Corrosive Resistance
 * +0% - +27% Corrosive Elemental Effect Chance

Gunslinger

 * +54% - +84% Pistol Fire Rate
 * +0 - +4 Deadly Skill
 * +0 - +4 Loaded Skill
 * +0 - +4 Relentless Skill
 * +0 - +20 Pistol Ammo Regeneration
 * +0% - +78% Pistol Accuracy

Hunter

 * +28% - +56% Bloodwing Damage
 * +0 - +4 Aerial Impact Skill
 * +0 - +4 Swift Strike Skill
 * +0 - +3 Out For Blood Skill
 * +0% - +44% Action Skill Cooldown
 * +0 - +2 Scavenge Extra Items



Ranger

 * +28% - +56% Team Accuracy
 * +0 - +4 Predator Skill
 * +0 - +4 Bird of Prey Skill
 * +0 - +4 Focus Skill
 * +0% - +66% Team Critical Hit Damage
 * +0% - +66% Team Accuracy Recovery



Scavenger

 * +2 - +3 Team Scavenge Extra Items
 * +0 - +4 Swipe Skill
 * +0 - +4 Ransack Skill
 * +0 - +4 Out For Blood Skill
 * +0 - +2 Team Find Rare Items
 * +0 - +14 Team Health Regeneration



Sniper

 * +15% - +95% Sniper Rifle Critical Hit Damage
 * +0 - +4 Focus Skill
 * +0 - +4 Caliber Skill
 * +0 - +4 Carrion Call Skill
 * +0% - +85% Sniper Rifle Accuracy
 * +0 - +11 Sniper Rifle Ammo Regeneration

Survivor

 * +2 - +15 Team Health Regeneration
 * +0 - +4 Fast Hands Skill
 * +0 - +4 Riotous Remedy Skill
 * +0 - +4 Swipe Skill
 * +0% - +51% Team Reload Speed
 * +0% - +31% Team Damage