If a mod is an amendment -- and, strictly speaking, it is -- then you have the right to bear arms in Dark Souls III. When you have a gun, none of the other rules matter a whole lot.
As reported by PC Gamer, modder Asasasasasbc has imagined a take on Dark Souls III that's a lot less punitive than From Software ever intended. It's trades the broadsword for the AK, and it's a lot easier to go medieval on someone's ass when you just have to let the lead fly.
The Modern Firearm mod takes guns that are mostly modeled after Resident Evil weapons and transplants them into Dark Souls. They replace specific regular weapons. So, the Light Crossbow turns into a Vector SBR, the Heavy Crossbow is an AK-47, the Knight Crossbow is an M16, the Repeating Crossbow is a Thompson SMG, the Sniper Crossbow is a sniper rifle, the Avelyn is a MP5, and the Arbalest is a shotgun.
Here's what it looks like in action. Warning: This video paints a picture of a preposterously easy game when it's actually quite difficult!