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 12% Lifesteal.
Reduce the Cooldown of Battle Shout by 1.2s.
Increase your maximum Ammo by 9.
Increase your maximum Health by 300.
Increase your Healing received by 30% while your Bulwark is active.
Increase your Attack Speed by 40%, but reduce your damage-per-shot by 25%.