[Ribbon-Blue]

Strategic AI System
-The Tides of War-

Ace Combat X: Skies of Deception revolves around the Strategic AI System. The Strategic AI System is similar to that of the Multi-Branch system seen in Ace Combat 03: Electrosphere [JP] and Ace Combat 2. Rather than focus on providing the player with two or more paths of missions to play in the campaign mode, the Strategic AI System focuses on providing the player with missions which change with the player's decisions.

At one point in time, the player can be presented with up to three missions at once. By completing one of these missions, the remaining missions could be effected in various ways. For example, by supporting an allied unit in one area, the enemy may take a base vital to the player's efforts. By losing this base, the player's weapons payload is reduced. Or in another situation, moving to destroy an enemy supplies may lead to a special forces unit being deployed in an area the player eventually moves to next. These changes only occur after a mission is included.

The Strategic AI System allows many of the missions in Ace Combat X to be split into variants. In some cases missions may have two or three varaints and previous locations may become playable with an all new mission. The Strategic AI System is the sole component which broadens Ace Combat X's Campaign to include up to 30 missions.


Sources
Ace Combat X: Skies of Deception

[Raptor 1 'Dragonheart']

Don't forget, the missions are only affected after you have completed the mission you pick. And, the Strategic AI System is only effective in Campaign mode (but you probably already knew that, right?).

[Ribbon-Blue]

I added that stuff in order to emphasize that this system on works in campaign mode.