My hoplite tactics are probably on the basic side I did read however one guy saying that he puts his into a triangle? very interesting but i would be worried about the flanks being exposed maybe a diamond shape would prove to be more secure as you have less severe corners to bridge with your flanks, one of my formation in to place my 4 hoplite units in a slightly open L shape more so its like a wide V with the flanks held with cavalry now the tricky part is to Rotate the V either left or right just before you engage so in effect you the side will swing round so hopefully i have explained this correct you will end up with the one flank to back of the enemy, In order to do this you will need your phalanx mode swithced off so your men move quicker and the effect on morale is very bad for the attacking army. then once you have done this you switch on Phalanx and hit them with as many flaming as arrows as you have and charge your cavalry from the flanks to sit directly behind the enemy dont engage these unitil one or units start to rout and then charge in this causes absolute panic.... this works well against slow moving roman armies. I have used this 4 or 5 times and its a Fu-ker to get right but if it works it works very well... my armies consist of 4 hoplite 2 militia hoplite 2 or 3 greek cavalry +1 general cavalry and either 3 units of archers or 4 javeline units (cant remember the greek name)

hope this helps I am pretty new to the battle scene as i always auto resolved in the past....