Column, Line or Square is a very simplistic way to view Napoleonic era tactics. Troops were either deployed in Column to march, Line to fight or in the case of the infantry Square to defend against Cavalry. Sounds simple. But these were tactics drawn up and codified to allow for a new era, where large numbers of troops were deployed. Sometimes they were conscripts, sometimes poorly trained and in the case of the infantry using muskets with limited range and poor accuracy.