Switch your rifle to Three-Shot-Burst mode, increasing your effective range and firing three 220-damage shots every 0.4s.
Gain 8-40% Lifesteal while using Iron Sights.
Increase your maximum Ammo by 2-10.
Generate 7-35 Ammo after getting a Killing Blow or Elimination.
Reduce the time it takes to bring up Iron Sights by 15-75%.
Fire in the Hole
Generate 6-30 Ammo for each enemy hit with Frag Grenade.