Which is why I suggested the FF variants, making it be primarily a melee weapon, just with long-range capabilities, and the thing with the enforcers having guns wouldn't really be as easy as you think, as they would have to be obtained illegally in order to be able to even aquire them due to the rarity of people able to make them, but yeah, I get your point.
I prefer a good blade myself, I was just stating that there could be a way to strictly monitor the use of firearms for the people who'd prefer them for some reason, so as to appeal to more people, but I do understand how irritating it'd be to have a person using a sword pull out a gun while they're parrying your last attack and insta-kill you with a point-blank shot to the head.
Anyway, the types of swords would have to be unique yet all share similar features, such as a blade, optional handguard, and hilt, as well as what the weapons are made of so you know how the metal swords can stand up to the plasma/laser/etc. ones.
It should also be noted as to what the type of society it is, which would affect the different cultures, hence determining what weapons are used by each culture, as well as the styles taught to use said weapons effectively.
Wouldn't it also make more sense that it's more than just swords, but other types of melee weapons as well, from the unique to the bizarre, each individual from the last, as they were built with parts found by the individuals, and either made by them or someone else who understands how to combine the items properly, such as a smith, and pay him using certain things in order to acquire a new weapon, the ones you bring parts for being cheaper and more unique, but the ones pre-made would more likely be more durable, yet quite a lot more expensive.
Honestly, I wouldn't mind coming up with ideas for how the parts fit together, making each weapon appear both unique and, in some cases, comical as well as being practical.
I understand that most people would prefer making their own weapons in such cases, yet I do enjoy when others combine different items in bizarre, comical, or awesome ways, so other people might enjoy a quirky smith-like character to add a bit of humor to the seemingly serious overtones of the story.