Such an order was completely out of place and even more so that it was right in the middle of the horde, sure Rezar needed the orcs, but he was not going to bend over for them as this particular race responded better to strength and power. Sure it was stereotypical of orcs to be wild and brash, but in this case it helped Rezar a lot as power and very good way to show it was something he had in spades. Kitagawa was as loyal to Rezar as the day he took his oath, even more so we the Kitsune would give his life for his king should the need arises, and should Rezar give the order to kill, he would carry out with a speed even faster than the undead bonded to his king.