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 1.
Increase your Reload Speed by 4% for 3s after using Detonate.
Heal for 390 after using Grumpy Bomb.
Heal for 75 for each Sticky Bomb you Detonate.
Increase the radius of Sticky Bombs' explosions by 20%, but reduce maximum Ammo count by 2.