I usually rapid fired as soon as i started to overheat combined with invul Motar did well enough. But I agree on that point that a skill used to immediately overheat was a blatant given, even the PVP skill "Stun Gun" did this to much praise and was odd MCH never got a skill like this until the following expansion
I wouldve loved to see them fix 4.0 as it has alot of skill fat and QoL adjustments away from being great instead of just quit and delete 40% of the job. Like remove rapid fire and combine it with overheat, have Hot shot, Blank, Cooldown, and Clean shot not absorb Ammo, add a new skill to trigger overheat rather than relying on flamthrower, remove Gauss barrel and just have it as a permanent skill gauge. Remove Heartbreak and blank, par for the course. with the tp skills removal and role actions removal This alone would've gave them plenty of elbow room to spice up MCH having only 19 plus its role skills being Peloton, Arms length and second wind being 22 skills left out of the 32 slots while 5.0 has the same amount suspiciously but the skills added were toothless like Tactician drill and Bioblaster and downgraded or increased CD to some like Wildfire or hypercharge or "Heat Blast". Id love to talk about the potential of a actual revision of 4.0 but everyone seems either doesnt care or moved on