Put the heat gain back where it was, and have 50-95 heat apply a secondary buff that buffs all attacks by x%. Change overheat to be a penalty, but let us slap it back on as soon as the ten seconds are up. Overheating being a damage buff makes no logical sense.

Maybe change reassemble to buff our turret anyway. I'd love a CD or ability that would let us set up to three rooks/2 bishop for example. Have the extra turrets lose HP passively till they break at which point we can't deploy another turret for a while. Just a thought, anyhoo.