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.
Gain 15% Lifesteal while using Iron Sights.
Generate 6 Ammo for each enemy hit with Frag Grenade.
Reduce the Cooldown of Frag Grenade by 4s for each enemy hit by it.
Reduce the cook time of Frag Grenade by 40%.
Increase your maximum Health by 150.
Increase the radius of Frag Grenade's explosion by 40%.