Talk:12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director/@comment-26922242-20180920162523/@comment-4981281-20180921001134

Firepower and torpedo buff when equipped to Shiratsuyu-class K2 ships. IIRC this will give Yuudachi a +3 bonus in firepower, which stacks with Akashi's bonus and (possibly) radar bonus. So if this was upgraded to +4, it'd give 3 (base FP) + 3 (innate bonus with Yuudachi) + 2 (Akashi bonus) + 1 (radar bonus), for a total of +9 FP and +3 torp. In comparison, Akizuki's guns would only give 5 firepower (base stat and Akashi bonus) and no torps whatsoever.