@seittan In English it'd be read as someone's titles before their name.
So it'd go something like:
Lieutenant General of the Imperial Guard, Minister of (whatever his post is), His Lordship (or actual rank equivalent) the Commander in Chief of the Punitive Expedition, Cousin (or actual relation) to the Emperor, Ashikaga Yoshiteru.
@1234muse building off what
@aceasulter said, to build rifled barrels, you'll first need the tools to make the rifling tool. Not to mention that black powder fouls up the grooves easily, so you either research a different rifling method, or you refine black powder into basic gunpowder. Both of which will require more intermediate tools and raw materials to research, never mind producing.
So at the very least, you'll need to make a tool, that can mass produce the rifling tool, in order to mass produce rifled barrels, while simultaneously having the workforce and workshops to create the barrels to be rifled in the first place, on top of having something better than basic black powder, and this is just to produce rifled barrels by hand. I read somewhere that in the 18th century a gunsmith working by hand, could make about 12 rifle barrels in a year.
If you want enough barrels to outfit an entire army, that'd first require creating a machine to make the barrels, along with the prerequisite tools to make the machine's parts, assuming the iron/steel even exists for the machine. And that's just for the barrel itself. What about the stock? What about the bullets? Or the firing mechanism?
It's easy to introduce modern tech to "ancient" times, but that knowledge may not be able to produce results, if the industrial base isn't there.