my personal best way to use elephants all out charge (elephants only) into the enemies center, then as chaos reigns a huge mass of cavalry hits the flank filling in the gaps. i once got a score of i killed 448 julii on corsica without losing a single man. no seriosly not one man even fell on the battle field. it was a sally (sally forth) battle. two units of weak elephants charge out the front gate into the enemy forces plow through there velites hit there center turned them around hit the velites again, turn hit the flank then a force of 3 generals and 2 adidtional cav hit there right killing all the remaining velites who could hurt the elephants. after that its a hunt and slaughter thing easy as pie.

hint never let the elephants stand still always charge, retreat, charge