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 Siege Shield by 4s.
Heal for 600 after hitting an enemy with Shoulder Bash.
Gain 30% Lifesteal.
Increase your maximum Ammo by 1.
Heal for 450 over 2s for each enemy hit by Kinetic Burst.