Class Mod (Borderlands)

Class Mods are 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, etc.

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

=Where= Class mods can be bought at Health Stations, found in chests, skag piles, garbage piles or are dropped by enemies. They boost certain things by a percentage and add ranks to existing skills.

=Class Specific= Here is where the different type of class mods available and what their collective stats should be.

Siren's
The Siren can use class mods that:

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 Diva Skill
 * +0 - +4 Resilience Skill
 * +0 - +4 Inner Glow Skill
 * +30% - +36% Team Ignite Resistance

Firefly

 * +28% - +56% Ignite Damage
 * +0 - +4 Spark Skill
 * +0 - +4 Phoenix Skill
 * +0 - +4 Diva Skill
 * +0% - +30% Elemental Effect chance

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
 * +0-21 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
 * +? - +78% Corrosive Resistance

Tempest

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

Tormentor

 * +27% - +36% Team Elemental effect chance
 * +0 - +4 Spark Skill
 * +0 - +4 Radiance Skill
 * +0 - +4 Striking
 * +?% - +33% Team Elemental Effect damage
 * +10% - +?% Team Damage

Soldier's
The Soldier can use class mods that:

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 Metal Storm Skill
 * +0 - +4 Impact Skill
 * +0 - +4 Overload Skill
 * +0% - +35% Weapon Damage
 * +0% - +50% 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 your own defensive abilities.


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

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


 * +0 - +40% Combat Rifle Damage
 * +0 - +4 Assault Skill
 * +0 - +4 Overload Skill
 * +0 - +4 Impact Skill
 * +0 - +11 Combat Rifle Ammo Regeneration (seems to only work with the semi-auto and burst fire rifles)
 * +0 - +165% Combat Rifle Recoil Reduction

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 Impact Skill
 * +0 - +4 Barrage Skill
 * +0 - +4 Stockpile Skill
 * +0 - +39% Team Magazine Size

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


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

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


 * +40% Electrocute Damage
 * +1 - ? Refire
 * +1 - ? Grenadier
 * +1 -? Fitness

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


 * +?% Shotgun Damage
 * +0% - +60% Shotgun Fire Rate
 * +0 - +2 Scattershot Skill
 * +0 - +3 Quick Charge Skill
 * Others, please document if found, Only one sample used.

Berserker's
The Berserker can use class mods that:

Berserker

 * +48% - +84% Melee Damage
 * +0 - +4 Heavy Handed Skill
 * +0 - +4 Endless Rage Skill
 * +0 - +4 Blood Sport Skill
 * +?% - 36% Maximum Health
 * -24% - -33% Bullet Damage Resistance
 * +0 - +10 Team Health Regeneration



Blast Master

 * +28% - +56% Explosive Damage Impact
 * +0 - +2 Liquidate Skill
 * +0 - +3 Master Blaster Skill
 * +0% - +39% Elemental Effect chance



Bombardier

 * +24% - +39% Launcher Reload Speed
 * +0 - +4 Endowed Skill
 * +0 - +4 Rapid Reload Skill
 * +0 - +4 Wide Load Skill



Centurion

 * +24% - +48?% Team Maximum Health
 * +0 - +4 Safeguard Skill
 * +0 - +4 Hardened Skill
 * +0 - +4 Die Hard Skill



Skirmisher

 * +32%-56% Team Melee Damage
 * +0 - +4 Bash
 * +0 - +4 Sting Like a Bee
 * +0 - +4 Short Fuse
 * +30% - ??% Team Maximum Health
 * -20% - -44% Team Melee Damage

Titan

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

Warmonger

 * +18% - +28% Team Damage
 * +0 - +4 Revenge Skill
 * +0 - +4 Payback Skill
 * +0 - +4 Hardened Skill

Hunter's
The Hunter can use class mods that:

Gunslinger

 * +?% - +78% Pistol Fire Rate
 * +0 - +4 Deadly Skill
 * +0 - +4 Loaded Skill
 * +0 - +4 Relentless Skill
 * +0 - +7 Regenerate Pistol Ammo
 * +?% - +60% Pistol Reload Speed

Hunter

 * +28% - +100% Bloodwing Damage
 * +0 - +4 Aerial Impact Skill
 * +0 - +3 Out For Blood
 * +0 - +3 Swift Strike
 * +? - +44% Action Skill Cooldown (apparently currently broken/non-functional)
 * +0 - +1 Scavenge Extra Items

Ranger

 * 0% - +52% Team Accuracy
 * 0 - +4 Focus Skill
 * 0 - +3 Bird of Prey
 * 0 - +4 Predator
 * 0 - +66% Team Critical Hit Damage

Sniper

 * +?% - +90% Sniper Rifle Critical Hit Damage
 * +0 - +4 Caliber Skill
 * +0 - +4 Carrion Call Skill
 * +0 - +3 Focus Skill
 * +?% - +85% Sniper Rifle Accuracy
 * +0 - +8 regenerate sniper ammo

Survivor

 * +2 - +15 Team Health Regeneration
 * +0 - +4 Swipe Skill
 * +0 - +3 Fast Hands Skill
 * +0 - +4 Riotous Remedy Skill
 * +0 - +47% Team Reload Speed Increase

Assassin

 * +0% - +60% Corrode Damage
 * +0 - +2 Deadly Skill
 * +0 - +3 Lethal Strike Skill
 * +0 - +3 Killer Skill

Scavenger

 * +0 - +3 Team Find Rare Items
 * +0 - +5 Team Scavenge Extra Items
 * +0 - +3 Swipe Skill
 * +0 - +4 Ransack Skill
 * +0 - +4 Out for Blood Skill
 * +0 - +3 Team Health Regen