Hi DoctorFoxman,
First I wanted to say thank you for your questions, I really appreciate it! Secondly, I apologize for being unclear as to whether or not Overkill stacks with minigun. It does not. The idea was that while Overkill is active, minigun would not be activated and picking Sizzlin' Attacks at 20 would make overkill work like minigun and also have the splash deal an additional 1.5% max health as damage to the main target and secondary target. As far as the Stun Grenade talent goes...
Posted: Aug 13, 2018