The Papal States, Catholic factions, Muslim factions, Orthodox factions, Mongols & Timurids and Neutral factions all have their own way of thinking. The changes to the Campaign AI, the AI on the world map, include several enhancements. It also contains three submods: the Character Names Project, the King's Banner, and the Real Combat mod. Ultimate AI makes the AI more advanced, so that the Vanilla campaign is greatly improved, and also a bit more challenging.
It also has a separate section for a new battle AI. It contains special coding for the Papal States, Catholic factions, Orthodox factions, Muslims, Mongols (Timurids), Aztecs, and Neutral factions. It is very detailed, containing separate AI profiles for certain groups of countries. The Ultimate AI mod for Medieval II: Total War is a project that modifies almost everything about the AI's behavior and coding, in order to improve the overall game. The Ultimate Battle AI, a part of the mod, was first released on June 16, 2007, and version 1.2 of the Battle AI was released together with version 1.6 of the main mod. The first version, 1.0, was released by GrandViZ. The current version of this mod, 1.6, was released on September 30, 2007.