Ive narrowed this thread down to the only class people have payed attention to, the Leone DD1.
DD1 Leone has 4x55 R Mounts, and 2X35 T mounts. the real life Leone class carried 4x2 4.7inch guns. Thats not possible ingame.
Edit: I suggest the 4.7"/27 OTO 1924 turret space requirement be changed from 61 to 50 so it can be mounted on the Leone as per historial fact.
Thats the ONLY change I suggest for the Leone.