Find good vantage spots for your artillery and set them free from the horses immediately so that they can begin firing.
When the battle for Coni begins there is a hill on your left which makes a great place to set up. It is always easier to defend than attack so just siege the city and let them attack you when you end the turn. In the same turn take the army on the left and advance on Coni to siege it. You’ll begin with Napoleon on the right and it is a good idea to immediately advance and deal with the Austrian army lurking just over the border ahead of you.
