What ordonnance for what situation?

[Tillan]

I started using the V formation a little while ago, it really is pretty good. 2/3 shots of cannister, combined with a few volleys of musket fire in different directions mean Ive never had an enemy AI unit reach my guns. Even in the one time they decided to charge my guns on mass.

I also have a couple of units of howitzers behind my lines, a full stack army, heavy on artillery could have-

Upto 4 foot artillery
2 howitzers
4 Cavalry units - usually 2 dragoon units or household cav, one heavy unit and the general
6 Line Infantry
4 Grenadiers

They would be arranged with

H\_/\_/H
...x...x
...H..H

The two upper H units will be the lighter cav, which can intercept units trying to flank me, as well as chance down routers, and also flank the enemy occasionally. The slashes are my Line Infantry. I reinforce the upper joins with the grenadier units which are placed behind the line, usually two units in the center, and one either side. The Underscores are where my Foot artillery is placed, the x's are the howitzers and the lower two H's are the heavy cavalry, ready to plug gaps, and charge down anybody that avoided the lighter cav. Im still trying to figure out how best to use the last 2 units of line, I think i might put them behind my line with fire at will turned off, ready to switch out with the front line. However i might also change them for two units of rifles/light infantry, I haven't really tried using light infantry at all, and after reading a few guides I think Ill try it.

The howitzers I more or less let shoot at what they want, but the foot artillery needs lots of micro managing, leaving fire at will on inevitably means that they will turn around and start shooting up the line around them, trying to aim for fleeing enemy units that have decided the best way out is to travel at right angles to my line. I'm still trying to figure out the best way to micro manage them, when should I switch to cannister, should I make them aim on the ground near enemy units, or should I just click on the units themselves etc etc. Any advice on that would be appreciated.