What kinds of weapons did Napoleonic war used?

Infantry were armed with the Musket. Muzzle loaded it could, in expert hands, fire 4 or 5 rounds in a minute. The British had some units using the Baker Rifle, it was slower to fire but more accurate, especially at longer ranges.

The Bayonet was common to all. Cavalry sometimes carried the Carbine, the Sabre was common to all light cavalry,( Hussars, Chasseur a Cheval) some were also Lancers. (The British had no lancers at this time) Heavy cavalry(Heavy Dragoons, Cuirassier) carried straight swords.

Artillery varied in calibre from 3 to 12 pounds, ranging up to about a mile. Howitzers fired over obstacles and used exploding shell, Shrapnel was in its infancy as were Congreve Rockets. (Which were very innaccurate).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.