Changes

Here is a list of all "Installation type [[Abyssal]]s" ever encountered in the game.

Here is a list of all "Installation type [[Abyssal]]s" ever encountered in the game.

*Here are listed the base forms of those installations, most coming in many variations often depending on the map difficulty, the map state (last-dance), and the event itself (most events bringing new variations).

*Here are listed the base forms of those installations, most coming in many variations often depending on the map difficulty, the map state (last-dance), and the event itself (most events bringing new variations).

**Some installation sub-forms of interestest are still listed, those forms having special variations like a different type than the main form, of some special abilities.

**Some installation sub-forms of interest are still listed, those forms having special variations like a different type than the main form, of some special abilities.

*Note that some toughness characterization may be erroneous, since most of those installations were introduced before this system was defined.

*Note that some toughness characterization may be erroneous, since most of those installations were introduced before this system was defined.

The targeting of installation follow some special rules.

The targeting of installation follow some special rules.

===Suport Expedition===

===Support Expedition===

* Shelling Support expedition can attack Instllation.

* Shelling Support expedition can attack installations.

*It's unknown if torpedo support and ASW support will target installaion or not.

*It's unknown if torpedo support and ASW support will target installations or not.

===Air strike===

===Air strike===

===Shelling===

===Shelling===

* Submarines can attack installations during shelling if equipped with a {{EquipmentLink|Special Type 2 Amphibious Tank}}.

* Submarines can attack installations during shelling if equipped with a {{EquipmentLink|Special Type 2 Amphibious Tank}}.

** They will only target instllations during the shelling phases.

** They will only target installations during the shelling phases.

** They will be able to attack installations at night regardless of equipment.

** They will be able to attack installations at night regardless of equipment.

** Their low firepower makes them poor anti-installation ships.

** Their low firepower makes them poor anti-installation ships.

* The torpedo stat is '''ignored''' when calculating night battle damage against installations. Please see [[Night Battle]] for more details.

* The torpedo stat is '''ignored''' when calculating night battle damage against installations. Please see [[Night Battle]] for more details.

** This makes destroyers, light cruisers, and heavy cruisers much weaker unless equipped with anti-installation equipment.

** This makes destroyers, light cruisers, and heavy cruisers much weaker unless equipped with anti-installation equipment.

* When targeting installation the Cut-in choice will ignore any equiped torpedo.

* When targeting installation the Cut-in choice will ignore any equipped torpedo.

** Except Special DD Cut-in that include a main gun (torpedo stat is still considered equal to 0).

** Except Special DD Cut-in that include a main gun (torpedo stat is still considered equal to 0).

* Night shelling Carrier Attacks will deal damage like they would to ships.

* Night shelling Carrier Attacks will deal damage like they would to ships.

** This include [[Ark Royal]]'s night swordfish attack.

** This include [[Ark Royal]]'s night swordfish attack.

* Air night attacks ignore all anti-installation bonus

* Air night attacks ignore all anti-installation bonus

** The attack can target installations even if no anti-anstallation dive bombers is equiped

** The attack can target installations even if no anti-installation dive bombers is equipped

=Damage Calculation=

=Damage Calculation=