March 2018

• Decreased heat/bullet from 0.068 to 0.063

September 2016

• Decreased heat/bullet from 0.075 to 0.068
• Decreased overheat penalty time from 2.5s to 1.5s
• Increased overheat upgrade multiplier from 0.9 to 0.915

March 2016

• Increased regeneration upgrade multiplier from 1.1 to 1.25