Let's see... No, sadly there is other changes for ShB rework to be a win. SB MCH would have needed a reworked heat gauge or an overheat button other than FT and a reworked FT to have a chance.
I'm going to change my opinion and say that I would like an ammo gauge back, as a 3rd gauge.
The reason for this change of heart is simple, it looks like SQEX wants to dumb down the gauge, WAR is going to be heavily simplified for example.
On the other hand we got GNB that had its gauge expanded and we had a taste of RPR shroud gauge, it's an ammo gauge+. That ammo gauge should be tied to actions like Hypercharge.
This would heavily ease MCH for everyone.
For me to consider the rework complete, I would rework Flamethrower but Wildfire as well.
MCH new actions don't merge well with old actions and Wildfire is one of them. Make it a heat spender and reduces its cooldown, the current form doesn't fit.
Changing wildfire to a heat spender would also ease MCH for everyone, it would mainly fix the heat loop.
If we imagine those changes to be implemented, plus Shotgun being a new CD and Buzzsaw an independent CD as well, I would consider the rework complete.
In short for me to consider the rework complete:
-Rework Wildfire to a more simple, interesting CD.
-If Wildfire isn't reworked, gives Barrel stabilizer charges to make it more flexible. It's too rigid to fit in the rotation right now.
-Rework Flamethrower to be a tool that you need to care about in the rotation. And delete its horrible "Tick per seconds" behavior.
-Make a new cooldown that revolves around heat (Wildfire being a good candidate)
-Expand hypercharge beyond spamming heatblast.
-Shotgun being a new cooldown that generates heat, giving it charges would allow a better control on the heat.
-Buzzsaw as a new independant, short cooldown.
Queen being a glorified dot could stay but if we get more of her presence on the battlefield overall, I believe it will fix itself.
It would change battery to be a "hold and release around every reassemble" to a real resource to manage. Getting an interaction would be cool as well.