@ Sinan, box formation is best for HAs since they can then maneuver in any direction easily. Loose because this minimizes casualties from enemy missiles. Catabrian circle is virtually a death sentence as it's really hard to pull them out of it when being charged by cav.

One of the biggest key to an all HA army is to adopt a Zen sense of liquidity. Retreat when the enemy advances, advance when the enemy retreats and always keep them under your arrow shower of death. At the same time, seek out weaknesses in their lines and exploit it ruthlessly due to your advantage in mobility.

If commanding capable melee HAs like Siphais or Dvors, luring enemy cav out and then crushing them in melee is a very viable option as well.