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 250.
Increase your maximum Ammo by 5.
Heal for 20 every 1s while Agility is active.
Increase the Movement Speed boost of Agility by 16%.
Regenerate 16 Ammo every 1s while Agility is active.