I've expiremented on the battlefield and came to the conclusion that the following deployment give youre army minimal casualties on an open field battle. For sieging i've got a similiar tactic. On the battle of paris i used this tactic to fight off about 1400 French forces, i only had arround 100 casualties. It's VERY effective against Calvary when properly used.
Spoiler for overview:
The arrows represent the direction off looking.
In black you've got youre line infantry.
In red youve got youre calvary.
In Green is youre general. (2 optional places, i prefer it in the middle, most safest as a lot off enemies try to attack youre general with their calvary).
In Blue you've got youre Artillery(needs to be placed on high grounds so it cannot directly hit the upper yellow square)..
The upper yellow square is youre "attack" force. Group all infantry-men to 1 single group. THen group youre calvary and general to a second group(if you decide to put him inside). The yellow square below is youre back up.
When starting the battle let youre artillery fire at will. If any enemies decide to go inside buildings, blast them out manually. The key in this tactic is to do nothing then wait and disiplined fire of infantry. Youre enemy will probally try to attack you with calvary in the flanks or rear. Just let them run towards you and when they are close enough let youre infantry fire at will. If properly done the calvary will be instantly destroyed for about 75%. By now youre opponents first wave off infantry is about to move, while under heavy fire due to youre Cannons. Select the entire infantry group and make sure you toggle off fire at will. When the enemy-infantry are close enough again, unleash hell by letting youre men fire at will . Let the battle go on for a while. Let youre inner calvary go out off the inner placement through youre flanks and let them flank youre enemy. Youre enemies first wave should now be retreating. replace youre 3 infantry units on the front by the back-up infantry which is at the cannons. By the time youre enemy will unleash it's second wave you've been fully reinforced. And are able to fire at max capability.
Key elements:
- The upper yellow square should remain intact at all times. If you decide to take out 1 infatry units you will create a weak spot.
- Concentrated fire, let youre men only fire when the enemy is close enough, this will make sure that every shot counts.
- Heavily guarded general, but close enough to finnish off routing enemies to gain extra traits.
- All flanks coverd.
- Multiple Units will fire upon enemies due to the line-of-fire floods over into each others line-of-fire.
Let me know how it worked for you, or improvements .