Maurits

when as an example you're playing the romans , always make sure you pepper them with all of your Pila, turn on fire-at will.
Low level phalanxes may even rout when hit in a crossfire of Pila, use this to your advantage.
Also defending is easier than attacking against phalanxes, let them tire and preferably let them walk a steep hill.

Once the main engagement starts , make sure you pin them ( frontally attack ) with an expandable unit - this unit will get ( depending on the type of unit ) the most damage.
Once the enemy phalanxe is pinned attack it in the rear or flank with an other unit , as an example ; principes or cav.

Make sure you leave them space to rout, otherwise they will fight to death , which can kill lot's of extra unit's

from a fellow Dutchman.