When you kill an enemy, gain 5 Stamina instantly and an additional 7 Stamina over 7 seconds, stacking up to 5 times.

Heal 1 Temporary Health whenever you kill a Ridden within 2.5 meters.

Melee kills heal 1 Health and 0.1 Trauma.

Each Melee kill grants 5% Melee Damage, 5% Melee Speed and 5% Move Speed for 3 seconds.

+ 15 Melee Damage + 20% Damage Resistance while using a Melee weapon - 15% Ammo Capacity

Every 0.75 seconds you Aim Down Sights gives 10% Recoil Control (up to 3 stacks). + 80% Aim Speed - 50% ADS Move Speed

+ 10% Effective Bullet Range + 15% Recoil Control + 25% Bullet Penetration + 25% Aim Speed

+ 10% Bullet Damage + 15% Effective Bullet Range

+ 5% Bullet Damage + 1.5 Bullet Stumble Damage + 7.5 Melee Stumble Damage

+ 7.5% Bullet Damage + 200% Bullet Penetration

Each bullet hit causes the target to take 1% increased damage for 3 seconds (stacks up to 15%)

Every 0.75 seconds you Aim Down Sights increases your Bullet Damage by 10% (up to 3 stacks).

+ 30% Rifle Ammo Capacity + 10% Damage with Assault rifles and LMGs

While crouching, gain 10% Damage Resistance and 40% Accuracy.

Gain 30% Move Speed and Accuracy while crouched and using an LMG.