Your scouts report: The Huns (yellow) and their allies, the Ostrogoths (red), occupy the right-hand side of the battlefield.
The Romans (blue) and their allies, the Visigoths (green) and Alans (cyan), are drawn up across the creek on the left-hand side of the battlefield.
The embattled Franks (gray) have been caught in the middle of the battle, and will soon be defeated. Their fate is none of the Huns' concern.
Among your enemies, the Romans are the most dangerous. Their infantry, Cataphracts, and siege weapons will initially try and hit the Ostrogoths on the Huns' flank. The Visigoths train Huskarls and some cavalry, while the Alans are composed mostly of Spearmen and Archers.
Franks (Franks): The Franks have some abandoned settlements and Farms scattered across the map. As they cannot train any units and have no army to begin with (except for a lonely Scout Cavalry and Battering Ram), they play no role in this scenario.
Alans (Vikings): Alans is a small town in the central east. They attack mainly with Cavalry Archers and Battering Rams.
Visigoths (Goths): The Visigoths reside at the southern part of the map. They attack mainly Battering Rams, Knights, and infantry.
Western Roman Empire (Byzantines): The Western Roman Empire has a town at the northwestern part of the map. They are the strongest opponent. They attack with Cataphracts, Champions, and Scorpions. They defend themselves with Castles which they rebuild when they get destroyed.
Even though the player, as Attila the Hun, emerges victorious, in reality this battle was tactically inconclusive (as mentioned in the post-game narrative), while it was a strategic victory for the Romans and Visigoths. Because this battle stopped the Huns' attempt to conquer Roman Gaul, as the Huns retreated.
While Alans are being depicted as "Vikings" in this scenario, in reality they were an Iranian people.