Combat/Installation Type

Land Bases, otherwise known as Installations, which so far have only appeared as enemy boss, while categorized as various diffetent ship classes within the game, they have numerous difference against ordinary ships.

General Rules

 * Cannot be attacked by Torpedoes.
 * Torpedo value isn't taken into calculation when attacking them, except during 2013 Fall Event. When targeted, torpedo attacks (Torpedo Phase or Night Battle) will not activate either.
 * Cannot be attacked by Carriers equipped with Dive Bomber, but Dive Bombers can target them during Opening Air Strikes.
 * Torpedo Bombers can't attack them during Opening Air Strikes.
 * The torpedo stat of Torpedo Bombers are similarly not taken into calculation when attacking Installations.
 * Equipping Type 3 Shell and WG42 (Wurfgerät 42) deals extra damage to Installations.
 * Attack power calculation same as Carrier-Type ships.
 * Special damage labels are shown when damaged:
 * Ever since a certain patch (?), all Installation-Type Abyssals that carry bombers will not attack during Day Battle when Moderately Damaged, just like Carriers.
 * They also activate the second shelling phase, like battleships.

Types
According to the March 11 2016 Update Patch Notes, there are now different types of Installations, with different characteristics.

Soft-Skinned
Soft-Skinned types refer to normal installations. Unless otherwise specified, most Installations introduced before March 11 2016 should belong to this category.

Notes:
 * Takes 250% damage from Type 3 Shells
 * Takes an additional 75 damage from WG42, with diminishing returns for extras beyond the first.
 * Daihatsus don't have any effect.

Pillbox
Pillbox is a new type of Installations introduced via Map 6-4, added in the March 11 2016 update.


 * Takes increased damage from any of the following equipment:
 * Wurfgerät 42
 * Daihatsu Landing Craft
 * Armor-piercing shells such as Type 91 Armor Piercing Shell (This is a separate bonus from the usual.)
 * Small/Medium-Caliber Main Guns
 * The developers claim that the Imps are not vulnerable to the Type 3 Shell.

Artillery Imps are currently the only known Pillbox-type Abyssal Installation.

Others
These are Installations that (might) behave differently in regards to damage, and haven't been categorized in the above categories.

Supply Depot Princess

 * Counts as a transport for transport kill quests.
 * Takes significantly more damage from WG42 compared to Soft-Skinned installations.
 * One WG42 gives 125% post-cap modifier.
 * Multiple WG42s gives 160%-166% post-cap modifier.
 * The aforementioned bonus is applied after the additional 75 firepower given by WG42 against installations.

Isolated Island Princess

 * Takes 200% damage from Type 3 Shells
 * Daihatsus don't have any effect.

List of Installation Type Enemies Sorted by Their Description and Appearance
Common=


 * -|Demon=


 * -|Princess=


 * -|Water Demon=