I disagree. It's a good quality model, and would fill the one empty slot in Rheinland's ship line. Blame Mjolnir for poor balance.
I'm also going to note upon this. The RMBC would offer an alternate role to the RM line that wasn't touched upon save the gunboat.
That being the Forward Gun. Of all the Rheinland(lawful) ships only the RM GB has a forward gun. While this is not a bad thing, nor am I saying in any way that any of the other ships are poor fighters. It would add just enough touch of variety to the RM line.
It was a wonderfully well modeled ship complete with a unique touch in the form of the targeting turret. In addition to being slim and long rather than the standard long and fat, or slim and tall.
I understand the reasoning behind the fear of adding new ships to the game. And the Rheinland line -is- fairly complete as it is. But at the same point, ships are being added to Bretonia (afaik) that being the gunship and a light carrier, to complete their lines. I'm not too certain why it would be such a crime to complete Rheinland's line.
Because it's something that could kill Mjolnir, I'm guessing. That's usually why we don't get nice things.