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.
Decrease your damage taken by 12% for 3s after using Nade Launcher.
Increase your maximum Ammo by 4.
Reduce the Cooldown of Nade Launcher by 2.5s.
Reduce your active Cooldowns by 30% after getting an Elimination.
Increase your maximum Health by 100.
Nade Launcher has 3 charges, but reduce the damage of each to 650.