Nagato's armor type is incorrect

Nagato has joined the game, and this ship has a unique feature: the magazine armor is very thick At the same time, this ship also has a fatal flaw: the deck armor and some other armor were historically made of HTS but were made of structural steel in the game, which makes these armor almost unable to provide protection. When the middle part of Nagato is hit , Nagato will lose a lot of crew members, and even AI’s HE can kill many Nagato’s crew members, making its magazine protection meaningless. This is not historical, replacing HTS with structural steel while maintaining the same armor thickness greatly weakens Nagato’s protection.
So I have two suggestions, you can choose one of them. The first point is to add HTS armor types to the game, making Nagato’s armor more historical. The second point is to replace the structural steel on Nagato with RHA, but reduce the armor thickness, for example, 76.2mm HTS it could be 45.7mm RHA。