In the first two series, teams of four contestants directed opposite forces. The teams were unfamiliar with computer games, to make sure their gaming skills did not influence their success. In the 2016 revival, two teams of three controlled opposing factions (for example, one team would play as Carthage and the other as Rome). After a brief introduction of the battle, including an overview of military units, terrain and available forces, the players had to develop a
strategy and then deploy their forces. In the first two series, two of the players were selected as
generals, who directed the battle and had access to a strategic map; in the 2016 revival, only one player was selected as the general. The other two players were designated
lieutenants in the first
series, and
captains in the second series and 2016 revival. The units were indirectly controlled by the lieutenants, who issued commands to programme assistants, who in turn used the game interface to control the units. Troop deployment and battle followed, although in both the 2005 and 2016 series there was a small skirmish conducted as a separate event to acquaint the players with the game mechanics and their units. In the 2016 series the teams also got strategic pauses where they could refine their strategies. During each game, a pair of military specialists analysed the performance of the players and explained how the real historical battle unfolded.
Lynette Nusbacher appeared in every episode of the first two series and was joined on a rotating basis by
Mike Loades,
Saul David,
Mark Urban or Dr.
Adrian Goldsworthy, the series' historical advisor. In the 2016 revival, Nusbacher and Loades fulfilled this role in all three episodes. ==Background==