If you want help checking Napoleonic Wars facts, I recommend going over to the Shadow of Eagles thread and asking. It’s literally an IF about the Napoleonic Wars, the author is extremely knowledgeable and supports other creators, and the most of the regular posters are (a) also very knowledgeable, (b) approachable, and (c) love giving their opinions on things out of sheer love of the game.
I’d offer my services as I do know a fair amount but I’m not on their level.