MCH needs a boost, I have a solution
We have 10 seconds of -20% dmg when we overheat and 10 seconds of -5% dmg reduction afterwards with no gauss addon... This is huge when it comes to our dps. We have dead zones where we don't have any other viable moves to use other than our basic shot, and then we're penalized for not perfectly rotating cooldown. Then, our big damage dealers involve our ammo (which has never made sense, I mean...what are we shooting without ammo?) So I have a solution.
The Gauss cannon is a cool addon that generates heat. It doesn't make sense to have to reapply a Gauss cannon. Make it permanent OR make alternative addons that modify our 3 basic attacks. Then why not give us a DOT when it overheats? Picture this: You reach 100 heat and go into the red. Instead of a dmg reduction, normal shots all become "Eject Gauss Core." You eject the heated Gauss cannon onto a single-target enemy creating a 30 second burning dot. Immediately after it's ejected, the Gauss Cannon is reusable to be heated again.