Lots of awesome stuff from the looks of the description, just one question: are there multiple ladders in sieges?
EDIT: Nevermind.
However, I think the armour for the sarranid cataphract and the other cavalry is the wrong way around.
Also, could use the samurai armour as it is already there...
EDIT 2: Also one problem with the multiple ladders is that the defenders don't seem to actually defend the second ladder