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.
Swapping to your Pistol grants 20% Lifesteal for 3s.
Heal for 500 after entering Stealth at or below 65% Health.
Increase the maximum Ammo count of both your weapons by 1.
Your inactive weapon generates 4 Ammo every 2s.
Increase your maximum Health by 250.
Reduce the rate of Stealth Energy consumption by 50% and increase your Movement Speed by 20% while in Stealth.