This mercenary unit acts like its a small and portable gun that can move without horse carriage, but in real life it’s a fully-fledged 12-pounder gun that can also fire as an obusier (howitzer). In comparison, 12-pounder guns were the heaviest gun used on the battlefield during the napoleonic wars (40 years before this unit start being deployed in France and in other countries).
I understand the need to have a powerful leather gun as a mercenary unit, but this unit is just so wrong on many levels…
It’s far from the dumbest unit. For that, “Dismounted Infantry” easily takes the cake.
I think it’s meant to be a little ambiguous as to what it’s referring to. Somewhat of a reference to the original Napoleon’s proficiency with artillery, and somewhat of a reference to the later large guns inspired by Napoleon III.
The in-game Napoleon Gun was added with the USA DLC and I’m pretty sure it’s supposed to be the same “12-pounder Napoleon” used extensively in the American Civil War. It’s connection with New Hampshire in the shipment “French Canadians” is indeed supposed to be vague but the M1857 12-pounder Napoleon (which was named by the Americans after Napoleon III who helped design it) looks just like the Napoleon Gun in-game with that distinctive shiny barrel: