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

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

+ 12% Move Speed + 15% Sprint Speed When you take damage, you lose the benefits of Run like Hell for 3 seconds.

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

Melee kills heal 1 Health and 0.1 Trauma.

While crouching you neither take nor deal Friendly Fire damage. + 10 Health

Melee kills heal 1 Health to yourself, and teammates within 10 meters.

Melee hits always Stumble Ridden the first time they are hit. This effect can only occur once per target.

Melee hits cause the target to take 3% increased damage, to a maximum of 15% increased damage.

Melee hits that destroy Armor have a chance to create usable Makeshift Armor.

+ 8% Move Speed

Each Melee swing grants 5% Melee Speed and 5% Melee Stamina Efficiency for 6 seconds, stacking up to 10 times. Your Melee Attacks no longer stick in tough enemies. DISABLES: Aim Down Sights

Melee hits cause the target to deal 3% reduced damage, to a maximum of 15% reduced damage.

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

+ 15% Trauma Resistance + 5 Health + 20% Fire resistance

+ 15% Damage Resistance + 10 Health DISABLES: Aim Down Sights