Successfully complete the indicated task to unlock the corresponding upgrade.

Ammunition Upgrade 1: Use a grenade to kill one Grunt. This increases ammo capacity.
Ammunition Upgrade 2: Kill an enemy with a "Death From Above". This increases your ammo capacity.
Faster Reload 1: Defeat one Biomech. This decreases the reload rate of the Yelena.
Faster Reload 2: Use the Kite ability on fifteen Grunts and kill them in the air. This decreases the reload rate of the Yelena.
Firestorm: Kill three Grunts with one Bulldog shot. This increases the blast radius for the Bulldog.
Hip Shot: Kill ten Grunts. This increases shot accuracy for Tungsten.
Hollow Point: Destroy one Polycraft. This increases Tungsten damage (one of two).
In Your Face: Kill two Grunts with a single Hiker shot. This increases the rate of fire on the Hiker.
Light Armor: Kill a Grunt in hand-to-hand combat. This increases how much damage you can take.
No Clipping: Defeat the Mohole. This increases ammo capacity for the SJMG.
Precision: Shoot an enemy while zoomed in with the pistol. This decreases the bullet spread when zoomed-in with the Tungsten.
Red Matrix: Defeat the Mohole. Red Matrix doors can now be opened.
Reloaded: Kill two Grunts with the Bulldog while swinging. This decreases the Bulldog reload time
Six Shooter: Destroy the Buraq. The Tarantula can now lock on to six targets simultaneously.
Sledgehammer: Kill three Grunts with the Hiker while swinging. This increases Hiker damage.
Super Charges: Kill one Grunt with a Whip Spin attack. This increases Tungsten damage (two of two).
The Bullet Hoser: Kill three Biomechs in hand-to-hand combat. This increases the rate of fire for the SJMG.
White Matrix: Defeat the Constructor. White Matrix doors can now be opened.