We need the mechanisms at both the individual and unit level to represent taking casualties. I personally take a hit if the musket is misfiring and I can't clear it on my own. I also pick the max number of rounds I'm going to fire, if all other things are equal. When they're gone, so am I. I've fielded with units that used the "If you were born in February, take a hit next volley" line. I'm not good at the walking wounded thing; every time I do it, people run up yelling "My God, are you alright?" (So I must be doing something right! ) If we who take hits responsibly and well stop doing it, we will abrogate this part of the hobby to the grandstanders and the clowns.
On a related note, how can I take a hit and NOT have the aforementioned panic ensure? When I do ww2, I can yell in Russian and everybody is pretty sure I'm not serious. (At least, I think if I were really injured, I wouldn't cry for help in Russian...) But what's the Civil War alternative? Tell the guy next to me "I'm taking a hit in 30 seconds?"
Pine River Boys, Co I, 7th Wisconsin
"We're... Christians, what read the Bible and foller what it says about lovin' your enemies and carin' for them what despitefully use you -- that is, after you've downed 'em good and hard."
-Si Klegg and His Pard Shorty