The rules do not allow cavalry to fire from the saddle (page 27). Only dismounted cavalry may fire their carbines. Is this prohibition based on historical fact, or just part of the game mechanics?
It may be worth considering, as early in the war a couple of nations did attempt to stop cavalry charges with fire. This was a bit of a left over tactic from the WAS, when it was normal practice for many nations. A point to remember, Frederick's cavalry charging at the gallop was considered a NEW tactic early in the war.
Occassionaly I found examples for firing cavalry especially in skirmishes. Some sources describe firing from the saddle as completely useless. Other describe it as effective. I think that it depended on the occassion. It may have been a good tactic to fire from horseback on retreating enemies, when a ordinary pursue would lead to confusion in your own ranks.
The French normaly fired their pistols at the enemy. I think that was useless and caused more casualties on the french side especially versus infantry. To fire from a fast moving horse is difficult, to hit your target is even unlikely. But to give the enemy the chance to shoot at you is dangerous. To hit anything with a pistol you've to be in melee range. Therefor I think it's right to not include the chance to fire with pistols into the rules.
Es marschierten drei Regimenter wohl über den Rhein...
Is this prohibition based on historical fact, or just part of the game mechanics?
So Donald, you reckon historical fact and my game mechanics are two different things. How rude!
Only joking of course. My assumption is that shooting from the saddle, with carbines, pistols or indeed the occasional blunderbuss, was largely ineffective, or at most only of very limited effect at very short range. Thus it is assumed to be part of melee fighting and not specifically represented, even by a melee modifier.