I'm not completely swapping the guns roles, despite the title of the thread, the Mercury already has 2 roles right now and it is a very easy gun to aim for armor, hence why I do not want it to remain like it is. Making the Artemis a better disabler than the Merc currently is would be disastrous for the Galleon, since its explosions would probably knock out multiple guns instantly.
I want the harder weapon to be used for something as important as armor piercing and the weapon that is easier to aim for the ship to be actually be forced to go for components.
The Artemis is in a weird place right now, as I have stated multiple times, it is only used as a Gun arc extra, I'm pretty sure that any ship that uses the Artemis right now would probably use a Mercury (Hell many of them already do even if the Mercury doesn't have the extra gun arc) if the Merc had the same gun arc, hence the weapon's only saving grace is it can turn a bit more, which is why I think it should be given a new role.
Anyway I rest this debate here, the rest is obviously just opinion, but I think good points are brought up from both sides of it.