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.
Reduce the Cooldown of Frag Grenade by 5s for each enemy hit by it.
Reduce the Cooldown of Frag Grenade by 0.4s every 1s while Hustle is active.
Increase your maximum Health by 250.
Increase your maximum Ammo by 2.
Reduce damage taken by 6% while using Hustle.
Heal for 300 per second while using Hustle.