A) : Secure a peace treaty with France, freeing you to focus on internal development and other external threats.
Here is the most direct and official link for the campaign mod for Total War: Attila :
Go to ModDB, download the mod, and prepare to lose 200 hours of your life restoring Christendom, defending the Holy Land, or burning Constantinople.
The story begins at a historical flashpoint. In the west, the is embroiled in a desperate struggle against the gathered might of Castile, Aragon, and Portugal . In the shattered remains of Byzantium, the Empire of Nicaea —led by Theodoros I—fights a bitter war against the Latin Empire to reclaim the lost glory of Constantinople. Key Features of the Campaign
Medieval Kingdoms 1212 AD is not just a reskin; it is a total conversion mod for Total War: Attila . The mod completely overhauls every single asset of the base game to transport players from the Migration Period to the High Middle Ages.
Here is the official, safe, and verified source for the mod: