What breed are the horses in Knights of Mayhem?

Known as War Horses.. The Belgian is the descendant of the type of horse used by knights as war horses.The war horses of the European Middle Ages were primarily of three types: The destrier, the courser, and the rouncey, collectively referred to as “chargers”. None of these are specific breeds, but rather types of horses with specific attributes and training. The well-known destrier was the largest and strongest warhorse, and was typically a stallion. They were also the least common and the most expensive. There is some debate on whether the horses were ever as large as the modern Shire, Friesian, and other breeds claiming lineage to the destrier. Studies of Medieval armor show the destrier was likely only 15 to 16 hands tall, and it was their strength and musculature that set them apart as the elite war horse. Coursers were the most common type of horse for battle knights and men-at-arms. Being shorter of back and with thickly muscled hindquarters, they were best for quick turns, spins and sprints. Light, fast, and strong they were the preferred horse for hard battle. Today’s quarter horse could be compared to the valuable courser. Finally, the rouncey was an all-purpose horse. Ridden by squires and poorer knights, the rouncey was even used sometimes as a pack horse.

Also, note that back then the wealthier you were, the better the horse :)

EDIT Update: Here's a link about Knights of Mayhem where they state they use trained war horses.. http://www.knightsofmayhem.com/about-us