March 2018
- Decreased start damage from 10 to 9
- Decreased end damage multiplier from 0.75 to 0.7222
- Decreased ammo capacity from 40 to 30
- Increased ammo upgrade multiplier from 1.125 to 1.1667
February 2018
- Increased max health from 75 to 84.7
- Decreased health upgrade multiplier from 1.1333 to 1.12
March 2016
- Increased regeneration upgrade multiplier from 1.1 to 1.25