This will be one of the last additions to the YV fleet. The ship was designed to be able to take enormous amount of punishment. It´s rather a high-tech prototype than a widely used dreadnought, the only canonical appearance was in the Battle of Mon Calamari.
Again, it´s only the rough shape. The back needs to be finished, DBs added along with many spikes and ridges to give it the appearance of rough metal...
Will it be used as "just" a meatshield or does it have other trucks up it's sleeve? ;)
I would love to answer your question however...I don´t understand it... :(