If a character forms part of a unit of troops, the unit as a whole will dictate his maximum movement. He simply moves along like an ordinary member of the unit. If the character moves more slowly than his unit, the whole unit will have to slow down so that he can keep up with them. During a unit's normal move (ie, not during compulsory moves or charges), a character is free to change position in the front rank of the unit, swapping places with other models in the front rank of the unit. This allows the player to place his characters in the best position depending on the situation.