Changes

* All ship classes larger than Destroyers suffer a severe accuracy and firepower penalty against PT Imp Packs.  Destroyers, however, get an accuracy and firepower bonus again this enemy.  Secondary batteries on Cruisers and Battleships also benefit from this bonus.

* All ship classes larger than Destroyers suffer a severe accuracy and firepower penalty against PT Imp Packs.  Destroyers, however, get an accuracy and firepower bonus again this enemy.  Secondary batteries on Cruisers and Battleships also benefit from this bonus.

** Before Nov20 JST evening, the original mechanism that provided Destroyers with the appropriate accuracy and firepower bonus against PT Imp Packs was not properly implemented. It has since been fixed.

** Before Nov20 JST evening, the original mechanism that provided Destroyers with the appropriate accuracy and firepower bonus against PT Imp Packs was not properly implemented. It has since been fixed.

* Type 3 Shells, Seaplanes, Skilled Lookout, Bombers are speculated to be effective as well, but this claim may require further testing.

* Type 3 Shells, Seaplanes, Skilled Lookout, 12cm 30-tube Rocket Launcher, & Bombers are speculated to be effective as well, but this claim may require further testing.

* They are most likely a reference to the [[:wikipedia:PT boat|Patrol Torpedo boats]] deployed by United States Navy during the World War II.

* They are most likely a reference to the [[:wikipedia:PT boat|Patrol Torpedo boats]] deployed by United States Navy during the World War II.

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