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.
Heal for an additional 240 after activating Battle Shout.
Increase your maximum Health by 750.
Gain 20% Lifesteal.
Increase your maximum Ammo by 3.
Generate 4 Ammo after activating Battle Shout.
Your Shield now regenerates at 120% effectiveness, and regenerates even while it is active.