After you kill a Mutation, the next time you damage a Mutation is guaranteed to cause them to Stumble.

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

+ 7.5% Bullet Damage + 200% Bullet Penetration

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

Your secondary weapons have unlimited ammo. Your secondary weapons reload 20% slower.

+ 25% Damage - 30% Health

+ 10% Bullet Damage + 15% Effective Bullet Range

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

Mutations you ping are highlighted and your team deals 10% increased damage to highlighted enemies.

+ 50% Weakspot Damage - 40% Move Speed while shooting or melee attacking.

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

When you stow your weapon, it reloads.

+ 30% Weakspot Damage - 5% Damage Resistance

Each time your team loots Copper, you gain 3 additional Copper, up to 25 times.