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.
Each Soul Fragment gathered Heals you for 30.
Increase your maximum Health by 450.
Increase your Reload Speed by 21%.
Gain a 500-Health Shield for 3s after activating Ignition.
Generate 50 Ammo after activating Ignition.
All your living allies are Healed for 1.5% of their maximum Health for each Soul Harvested.