Corrected entry: In the final battle the defenders use the trebuchets left behind by the retreating Roman army. But trebuchets require a lot of technical experience to use effectively. With the depart of the Roman empire these 'high-tech' weapons had become useless.
Mad Ade
13th May 2006
Correction: The trebuchet is nothing more that a huge sling shot and anyone with a modicum of intellect would soon work out the basics of the mechanism. The effectiveness of their use is indeed pivotal to the sucess of the shot, but not necessary in the working and destructiveness of its use.
Mad Ade