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

+ 25% Weapon Swap Speed + 15% Recoil Control + 15% Accuracy

+ 15% Reload Speed + 25% Aim Speed + 25% Weapon Swap Speed + 25% Use Speed

+ 50% Ammo Capacity + 15% Reload Speed

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

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

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

+ 7.5% Bullet Damage + 200% Bullet Penetration

+ 10% Bullet Damage + 15% Effective Bullet Range

When you or your team kills a Mutation gain 1% damage (up to 15%) until the end of the level.

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

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

Defibrillators and First Aid recover 10 additional Trauma Damage and 1 Extra Life, if able.