Hello chaps, signed up to comment on your awesome looking mod. Looks really great and the models and guns look very impressive.
I have a few historical suggestions, I think you should reconsider how the greatcoat is worn on the Prussian Infantry, 'en-bandolier' was the regulation on how it was worn in the Franco-Prussian war, and photographs of the soldiers in field kit from the time seem to suggest that was the case, i have attached a photo and a quote from 'German Armies 1870-71'
Secondly, how the gun is held, it is quite awkward to have it on the shoulder, then flipping to the firing position. A much more natural pose would be to have it it in the 'charged' position, that is held horizontally, this was how it would have been held in hand to hand combat, and also when closing with the enemy. It will also animate much more naturally, raising to the shoulder and firing, then dropping to the charge position to reload, rather than on the shoulder. An alternative would be having the Prussians carry the gun 'at the trail' held alongside the side of the body.
Perhaps the muzzle loading M1850 pistol isn't much fun, but it was very common, certainly if single-player is considered and hopefully it is, then it should be considered.
At any rate, keep up the good work! Love to see a totally neglected period getting some attention