AU Developers - Please PM Knightmare or MechRat if you need board or permission changes
Having only skimmed the book and considering how quickly you put this together, with art and record sheets, in word (pig of a program) and that you are not a native speaker, it's a bloody good effort.
Well, the reason for the reverse order is rather trivial to be honest. Initially I only planned to release the Supplemental as a mini-TRO, consisting of only the Yggdrasil and the Nibelung. But after a while I decided to expand the TRO a bit and thus I wound up with with the reverse order. But I thought it to be alright as long as they are in some kind of logical order.In-universe-wise the reason for the name (Yggdrasil) is mentioned in the fluff. From the meta-perspective however, since the design is quite powerful, a Berserker on steroids basically, I thought it befitting to pick the biggest motif in Germanic mythology for it.
Really, as long as there is an unbroken line of people calling themselves "Clan Nova Cat," it doesn't really matter to me if they're still using Iron Wombs or not. They may be dead as a faction, but as a people they still exist. It's not uncommon in the real world, after all.
Looking over a second time the Nibelung and the Terror variant are particularly nice - I may have to use a few these in my AU assuming you don't mind