so what makes it different from the KMS shiny horse super dreadnought? even then Graf is supposed to be her own class... either the dev team intentionally fucked up to make things simpler on the coding side?
There was the SS Scharnhorst, which was converted into a carrier, Shin'yō. A Japanese escort carrier.
As I recall, it was a German ocean liner that never returned to Germany since the work broke out. So the Japanese converted it into a Taiyou class light carrier, Shin'yo.