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 Health by 600.
Heal for 50 every 1s while Bulwark is active.
Increase the Health of your Bulwark by 400.
Gain 16% Lifesteal.
Increase your maximum Ammo by 9.
Your Shield now regenerates at 120% effectiveness, and regenerates even while it is active.