This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Generate 6 Ammo for each enemy hit with Frag Grenade.
Gain 20% Lifesteal while using Iron Sights.
Increase your maximum Ammo by 10.
Increase your maximum Health by 200.
Reduce your weapon recoil by 20% while using Iron Sights.
Heal for 300 per second while using Hustle.