But that would be playing with fire. No i litterally mean it. If you want heatsink usefull, then fire needs to be more dangerous. And fire is dangerous.
Heatsink has always been usefull, to me atleast. It gives more bullets than greased, where the mercury and heavy flak have 3 shots. Not only that, heatsink does actually do more damage than charged in merc and H.flaks matter.
It does need some kind of buff, but an apparent buff. I always support the idea of the ammo types need to be more saturated. As in, charged is for DMG. Greased is for SPEED. Incindiary is for FIRE and lesmok is for RANGE. Heavy clip is quite alright on that subject. Removes all recoil.
But heatsink is actually a tough ammo to saturate. Its a mix of everything atm. But i do believe it is the fires fault. I dont remember the ammount of stacks of fire it takes to put a gunner away from his gun and how much it was before.
Right now, a small reduction in stack requierment to put a gunner away from his gun may be neccesary to put heatsink back in action.