Mozory used Ulfs and RCs against Fire's Hip'n'Tox attack. I especially liked watching Mozory weilding his army, keeping the Ulfs and RCs in separate groups, and microing them into attacks against the proper troops.
Not sure why Fire resigned though. Maybe I missed something. His army was detroyed, but I think he had the resources to make more and keep the fight going. Not sure that it was over, although Mozory had the upper hand at that moment.