Changes

Any enemy submarines will force Destroyers, Light Cruisers, and Torpedo Cruisers to target them. Cut-In and Double Attacks are ignored. In normal Night Battles, ASW damage is scratch damage only. In battles starting at night, Formation Modifiers apply.

Any enemy submarines will force Destroyers, Light Cruisers, and Torpedo Cruisers to target them. Cut-In and Double Attacks are ignored. In normal Night Battles, ASW damage is scratch damage only. In battles starting at night, Formation Modifiers apply.

As of June 30, 2016, Destroyers and Light Cruisers, Torpedo Cruisers as well as [[Isuzu|Isuzu Kai Ni]] can now perform a preemptive Anti-Submarine Attack on enemy submarines upon the start up of the map. In order to trigger this, a Destroyer, Light Cruiser, or Torpedo Cruisers needs to be armed with a Sonar and have stats greater or equal to 100 ASW. [[Isuzu|Isuzu Kai Ni]] can perform Preemptive Anti-Submarine Attack regardless of her ASW stats as long as she is armed with a Sonar. The trigger effect of this ability seems to be garunteed if the conditions are met for every ship that can meet this condition and each ship will perform the preemptive Anti-Submarine Attack until those that meet the conditions complete thier preemptive attacks.

As of June 30, 2016, Destroyers, Light Cruisers, Torpedo Cruisers and Training Cruisers can now perform a preemptive Anti-Submarine Attack on enemy submarines. [[Isuzu#Second Upgrade|Isuzu Kai Ni]] can do it unconditionally; other light cruisers as well as destroyers, torpedo cruisers and training cruisers need to have an equipped sonar in addition to have at least 100 ASW (counting equipment stat adjustments but not improvement through [[Akashi's Improvement Arsenal]]).

 

In addition, only the kanmusu's ASW stats based on thier level and base ASW stats from equipment will contribute to performing the Preemptive ASW attack. Modifications done to equipment to improve ASW '''will not contribute''' to the triggering Preemptive ASW.

 

Damaged caused by per-emptive ASW is slightly weaker in comparison to ASW during shell phase.

=== Common Setups ===

=== Common Setups ===