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 150.
Activating Fire Bomb heals you for 300 over 2s.
Increase your maximum Ammo by 6.
Reduce the Cooldown of Nade Launcher by 1.5s.
Heal for 180 for each enemy hit with Nade Launcher.
Nade Launcher has 3 charges, but reduce the damage of each to 650.