And regarding the casualties issue...The idea that 90% of all casualties in the napoleonic wars were caused by muskets is pretty absurd, given the inaccuracy of the weapons and how much damage was inflicted on formations by artillery while they were formed up and by cavalry after they dispersed.

Most of the casualty breakdowns are arrived at by totaling up the breakdowns of wound types in hospitals - all that tells us is which type of fighting is most likely to cause wounds, as dead men aren't admitted to the hospital.

Muskets probably had a very high proportion of wounds/deaths due to the inaccurate nature of musket fire.

Bayonets and swords, when used, probably had a very high proportion of deaths/wounds because you're not throwing your bayonet at a block of troops 90 yards away and hoping it hits someone, you're stabbing some guy in his torso to kill him. Either he evades the blow, or it lands and he dies.