Even though the Combrig Retvizan is very detailed and very well made, I made the following improvements in an attempt to make the model look just like the box art.
3. Added water-tight doors to superstructure.
The kit was complete except it needs some water-tight doors, extra vertical ladders and extra railing. There was not enough supplied with the kit. Buy a GMM set. I loved building this kit and especially love the time period. It is a very good model of a unique subject and is highly recommended. The kit may not be appropriate for a beginning modeler.