Changes

#* [[SBD-5]] can now be improved

#* [[SBD-5]] can now be improved

#* [[Submarine Radar and Waterproof Periscope]] can now be upgraded into the [[Submarine Radar and Radio Direction Finder (E27)]]

#* [[Submarine Radar and Waterproof Periscope]] can now be upgraded into the [[Submarine Radar and Radio Direction Finder (E27)]]

#* Lists of submarines to improve the [[Submarine Radar and Waterproof Periscope]] and [[Submarine Radar and Radio Direction Finder (E27)]] have been improved.

#* Lists of submarines to improve the [[Submarine Radar and Waterproof Periscope]] have been improved.

#* [[46cm Triple Gun Mount Kai]] can now be improved and modified into the [[Prototype 51cm Twin Gun Mount]]

#* [[46cm Triple Gun Mount Kai]] can now be improved and modified into the [[Prototype 51cm Twin Gun Mount]]

#* List of ships that can improve the [[Prototype 51cm Twin Gun Mount]] and [[New Design Anti-Torpedo Bulge (Large)]] have been updated

#* List of ships that can improve the [[Prototype 51cm Twin Gun Mount]] and [[New Design Anti-Torpedo Bulge (Large)]] have been altered and updated

#* [[Prototype 51cm Twin Gun Mount]] can now be improved into the [[51cm Twin Gun Mount]]

#* [[Prototype 51cm Twin Gun Mount]] can now be improved into the [[51cm Twin Gun Mount]]

#'''Equipment Development Update'''

#'''Equipment Development Update'''