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.
Activating Fire Bomb heals you for 300 over 2s.
Heal for 180 for each enemy hit with Nade Launcher.
Increase your maximum Ammo by 8.
Reduce the Cooldown of Nade Launcher by 1s.
Increase your Movement Speed by 15% while Hunter's Mark is active.
Nade Launcher has 3 charges, but reduce the damage of each to 650.