Notably the hired units were deployed with their own command structure. As Carthage sent out specific recruiters who bargained contracts with each soldier/corps of soldiers, it is possible that these also served as officers responsible for the integration of their units into the army. Polybius noted for the mercenary war that the mercenaries were told to ask their commanding officers for payment, which frustrated them to such an extent that they elected new ones. In the army, payment was done per unit with subordinates responsible for the further distribution.