i would love to have x-ray mode like world of warships and able to select armor thickness for individual plates, but its probably beyond the scope of this project. So i suggest expanding the current model to simulate real world armor system. Currently, a ship is divided into 3x7=21 sections and the main belt only protects the middle 5 sections. i suggest to expand it to 4x7 as the picture shown below.
1.Two armor schemes with different armor layout: Flat deck on top of belt & Turtleback.
2. Belt armor is divided into two belts: Upper and lower, allowing tapered belt armor design.