There is a medium hull that is used for the Battle (Hammer|Axe) class human ships which is not available in the shipyard. The hull is actually just a small hull with two pieces of jewelery...but is classified as a medium in GC2 when you mod a Battle (Hammer|Axe), but is only a small if you try to build it.
I would very much like to have that hull available to build new ships on, not just upgrade others. Is this a bug/feature/omission and is there a workaround/fix?