Rail guns are subject to MRPs just like any other weapon. The only things I can think of that bypass MRPs are reverb cascade vs. shield generators specifically, and possibly feedback cascade vs. SCBs under the right circumstances.Rail guns bypass mrp's protection and amored powerplant ship builds are generally less combat effective than their overcharged counterparts.
I honestly expected you would say that, you strike me as someone who would be more than happy to revert combat and ship outfitting back to 1.0
I actually like a lot of the options created with engineering. I've had a ton of fun mixing and matching different weapons and special effects. I'd be quite sad to lose all that. I'm not a fan of the myriad balance issues created by the outrageously poorly balanced blueprints, but that's its own issue.
As for overcharged, that particular one I'm not a fan of. Power draw has always been an important balance lever, and overcharged just throws it out the window. One of the big disadvantages, lower integrity, is largely made moot by the absolute protection provided by shields. Building a super-strong shield takes a lot of power, but... with overcharged power plant that isn't a problem. Since the heat efficiency drawback only affects your base heat (heat produced by the power draw of your modules), it's not that big of a deal either. On the subject of it being required for an effective build, yeah, I'm not so sure about that. You can already get a massive +17% power output with armoured + monstered. That is an enormous amount of power vs. stock. I'd much rather see overcharged get replaced with lightweight (lower integrity, but much lower mass, and possibly slightly worse heat efficiency)- an option that is glaringly missing from the options.