How historically is the campaign of Age of Empires 2?

I’m asking about the campaign missions in general, but if you prefer me to be more specific, then I’m asking about each subcampaign’s final mission.

Khan’s final mission is to win the control over a bridge, using suicide bombers.

Barbarossa’s final mission takes place after his death, and your job is to bring his body to the Dome of the Rock.

Saladin’s final mission involves building a massive tower and defend it against the crusaders.

D’Arc dies in the end, but your job is to avenge her by beating the Britons.

Wallace end mission is about entering an English city and conquer their castle.

How correctly told were those stories?