There are three formations in the game:
a) line : just firing,
b) column of division: firing before charging,
c) column of platoon: only charging.
For order to Corps, take a look at the page 29 of the "Manual of Operation"
Hook : The problem is, the men will stop to fire on their own, without orders, and it's hard to get them started again.
Right... No sure if there is a translation for the book "Etudes sur le combat" de Ardant du Picq; this author wrote about the the moral and psychological aspects of battle; very interesting.
JMM