But I find the idea of a Imladris having siege weapons like the Da Vinci catapult or some ancient roman scorpion really fitting. Ok it is not mentioned in the lore (as far as I know). Yet the Noldor elves were the students of Aule the Valar of smithing and craftsmanship and the most advanced civilization in middle earth, so they should be able to build such weapons.
I completely agree with you. Yes, it's not mentioned directly, but the lore tells us clearly that the Noldor started to craft mighty warfare material already in Aman, especially during the turmoil and unrest caused by the lies spreaded by Melkor. Therefore, I think this proposal, backed by the majority of the participants in this debate and by solid arguments, is more than legitimate
The focus on advanced warfare was exactly the main guideline followed in conceiving and discussing the suggestion.
The main problematic aspect of Light Bringers was, in my opinion, that they would have not fitted so well in the new mechanics and spirit of the 4.0 version. Their display of Magic, in addition, kind of resembled at times the destructive and direct powers of the Ainur, contrasting to the very well-known subtle and pervasive Magic Tolkien wrote about in the events set during the late Third Age (obviously, mainly LOTR).
This is really an interesting and rich thread. I hope the Edain Team will make good usage of it