>>5216504>>5216482>>5216475I just think it may be easier on QM to write stuff by linking it to existing 40k tech.
So for example, EMP. In Warhammer terms that's called "Haywire" weapons. Cawl for example, specifically builds his body with shields and insulation specifically more powerful than that of Necrons so he can unleash a Haywire pulse bomb that can fry the circuits off them, till they repair anyway.
Titans have large scale haywire missiles.
However against the Organic based ships of the Mitu and the questionable technology of Ork Roks they may not be as effective. They might have some effect perhaps, like causing radio interference and frying crude Ork radio vox, but they just aren't the same kind of technology.
As for weaponizing Lucius by tapping into the core, I don't see why not if we can spare the resources. We could build numerous Plasma Obliterators that are fueled directly by the heart perhaps.
>>5216504If you mean Necron Gauss we'd need to encounter necrons first, but there are canon examples of Mechanicus reverse engineering and even combining Necron-Gauss in strange ways, to more or less success.
if you mean regular magnetic accelerators, in this era they are rare but not unheard of. Asides Custodes Tanks, nothing stops us from developing the Macro-Accelerator cannons of the Astreus super heavy tank earlier.
Also we certainly can choose to favor Plasma-Batteries as opposed to standard Shell Cannons for short range rapid firepower. Though I still generally prefer lances. Ranged is King baby.
I think if you elaborate the weapon more and give some examples, I could try to find a 40k analogue