What is the use of Troll Headhunters?

Besides the life value and range, basically all other values are superior to the human dwarf musketeers, such as the cost of construction, occupied population resources, training time, attack power, life recovery rate, etc., cost-effective is very high. However, the need to build a war mill, and the need for a certain amount of meat shields exist in order to play its power, but the price of the early orc infantry is expensive, as well as the prevalence of the orc clan to climb the second level of science and technology to play the common, so it is not common to have players training. In the mid to late stage, there is a stronger attack, more athletic bipedal flying dragon to join, headhunters will appear to be not enough class.