Units of troops commonly include a Standard Bearer who carries the unit's banner and a Musician such as a hornblower or drummer. lt is also usual for units to be led by a Champion, an experienced and able warrior.
The Champion, Standard Bearer and Musician are placed in the front rank of the unit whenever possible. When a unit turns to face its side or rear, they are automatically rearranged in the new front rank.
As we shall see later, a unit can also be joined by a character, in which case these models are also arranged into the front rank alongside the Champion, Standard Bearer and Musician. Don't worry about this for now - the rules for characters are explained later.