It just seems silly to have a bunch of men marching, with a drummer to alert the enemies that they are around, and to just stand still while they fire at each other.
I'm guessing there's a good reason for it, and that strategists and tacticians at the time were probably limited technically to any kind of guerrilla or modern war tactics.
I have written extensively on tactics and military theory during the Revolutionary and Napoleonic Wars which you might like. If you have any other questions, please ask, I am more than willing to answer on this.