I've played another mod long time ago a while, they also had different stats for the battleships and different turrets (lib, bret, kus, rein, order).
BS's
Liberty BS weak hull and less turrets (12), but more agile and faster
Bretonian BS average hull and more turrets (15), pretty agile and fast
Kusari BS average hull and more turrets (18), not so agile, and slower
Reinland BS strong hull and much turrets (21), but very slow and not agile at all
Osiris BS Very strong hull, few turrets (10), agile and fast
The shield of these BS had no effect at all. about 1000 shield energy with almost no regen.
The battleship fights where pretty cool. You had to be with about 3-4 fighters/bombers to kill one. Very cool for blockades.