Hiro seems to be attacking his own team's Calhoun Turrets. I have a video but I did my best to screen shot what was happening. When the turret taunts, Hiro gets an assist and attacks the turret. What's even worse is Calhoun support fires her own turrets after Hiro. I uploaded a recording from my phone to YouTube:
https://youtu.be/IoQ09kbYVJ4