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 Shoulder Bash by 1.6s.
Reduce the Cooldown of Siege Shield by 1.6s.
Increase your maximum Ammo by 4.
Increase your maximum Health by 600.
Heal for 600 after hitting an enemy with Shoulder Bash.