Cost: 1500 / 500 (solo)
Revive your teammates faster. While playing solo, you can revive yourself.
Gives the player extra health.
Reload your weapons Faster.
Inscreases the rate of fire of the player's weapons.
Prevents fall/explosive damage and if the player dolphin dives from an high enough height, a small explosion occurs.
Inscreases hip fire accuracy and when the player aims, the weapon locks to the nearest zombie head.
Boosts the sprint speed and the player can sprint for longer.
Allows the player to carry a third weapon.