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.
Regenerate 2 Ammo every 1s while using Hustle.
Gain 10% Lifesteal while using Iron Sights.
Reduce the Cooldown of Frag Grenade by 3s for each enemy hit by it.
Increase your maximum Ammo by 10.
Increase your maximum Health by 200.
Heal for 300 per second while using Hustle.