Reply To: Lottorio Class BB
DP is Dual Purpose Shells used in the light guns.. basically shells set with an altitude marker to explode at a certain height. (and the Western Allies VT is what removed the half AD of light guns as it improves the effectiveness of those shells)
The AA guns are the AA battery – those 12 x 90mm are what gives the ranged AA… (AD3 at 6″ range) the smaller calibre AA guns are what give the class it local X trait.