I always field plenty of spearmen to completely render enemy cavalry antics worthless. I take my infantry and charge and attack as soon as possible before the enemy completly set up their own formations. Its great fun too.
If I'm the offensive, I turn off the fire to off. Just as I'm reaching the enemy I charge. They can't get off their volley most times so my elites smash into their lines and drive them back forming a wedge. My lesser troops hold the flanks. Becasue my elites and swordsmen drive into the enemy middle, the enemy line goes from a line like this ---- to something like this: __---__ My elites drive through the middle and thin the enemy line out while my own line is steadily consolidating itself.
E=Elites and sword units, S=spearmen, L= Light troops, C=cavalry
LL SSSS EEEEEE SSSS LL
CC
If I'm on the defensive, I place weaker spearmen in the middle on guard mode with the general behind them or nearby to keep morale up. Strong/elite warriors I place on the flanks. I have them drive the enemy flanks backwards. My spearmen in the middle hold while the elites take care of the wings then once the enemy wings are routing, they head for the middle to smash the troops fighting my spearmen. Instant victory. My line goes from this: _____ to this:---______---- and I get to flank them eventually.
E=Elites and sword units, S=spearmen, L= Light troops, C=cavalry
EEEE SSSSSS EEEE
L L CC L L