Hi! I think that would be fantastic if you could add the siculo-norman attack of Alexandria in 1174. For this event the norman army could be a rebel army like the crusades of the Fourth Crusade, that would appear in 1174 sieging Alexandria with several siege machines.
Here an extract of the book "Latin Siege Warfare in the Twelfth Century" of Randall Rogers that reports this siege:
And for the norman units you can ask to Mr.Crow if he lets his fantastic sicilian units for this event.
Link of his post: http://www.twcenter.net/forums/showt...an-Unit-Roster
Here one example of his awesome units:
Siculo-Norman Knights