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.
Increase your maximum Ammo by 2.
Increase your maximum Health by 150.
Reduce the time it takes to bring up Iron Sights by 75%.
Reduce your weapon recoil by 20% while using Iron Sights.
Gain 25% Lifesteal while using Iron Sights.
Increase the radius of Frag Grenade's explosion by 40%.