Khao'khen himself knew that the Warghen Clan didn't have anything in their arsenal that could combat against the chosen strategy of their foes. He knew that the enemy's way of fighting of striking from a distance was not within his calculations. A missile battle was one of the obvious weaknesses of the horde.
The Warghen Cavalry is categorized as a melee light cavalry and the Rhakaddon Cavalry was categorized as a heavy cavalry. BY his own standards, Khao'khen wasn't prepared the threat that was presented to them,
The Warghen Cavalry was too expose to combat against the enemy missile cavalry and he knew for sure that they would be easily dismantled by the enemy arrangements before they could do some real damage and the cavalry under the lead of Dhug'mhar would easily be outrun by the enemy forces.