wow if you implement the Undead you will be my saviours!!! <3 lol
ummm Sauron your "rant" about the undead really made no sense whatsoever, why do the undead have to live in an era with guns?
Also the sieges wouldn't be weird... the possibilities would be numerous! From catapulting dead corpses to spread plague, to catapulting rolled up skeletons who attack once they have reached the other side of the wall!
Lizardmen?