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 your damage taken by 8% for 2s after hitting an enemy with Commander's Grab.
Reduce your active Cooldowns by 40% after getting an Elimination.
Reduce the Cooldown of Battle Shout by 2.4s.
Increase your maximum Health by 150.
Increase your maximum Ammo by 12.
Increase your Attack Speed by 40%, but reduce your damage-per-shot by 25%.