I played a game of Age of Eagles last weekend with some friends. AoE is a Napoleonic set of rules by the same guy who wrote Fire and Fury the well known American Civil War rules. I've wanted to try these rules for a long time but never got the opportunity until last week.
The game itself was The Battle of La Suffel - The penultimate battle of the Napoleonic Wars (but we used Revolutionary figures).
Also, there were several bridges but they made no difference. Infantry, horse and even artillery just crossed the river with minimal problems. What is the point of having bridges if guns can just cross rivers with ease? I didn't get it.
I just did not get it at all. It made zero sense to me.
In my opinion: just because the troops fight in lines, what works for ACW does not necessarily transfer to Napoleonics.