Installation

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Installations are a type of Abyssal commonly encountered in events, extra operations, and boss nodes of advanced maps, such as World 6-4 or E4 in Summer 2016. They tend to be governed by special rules, and certain equipment gains bonuses when used against them.

General Rules

• Cannot be attacked be Torpedoes. This includes Night Battle Base Attack Power; only Firepower is calculated in attacks against Installations.

• Cannot be attacked by Standard Carriers or Light Carriers equipped with Dive Bombers, though Dive Bombers can target them during Opening Strike.

• Torpedo Bombers can attack them, as long as the Carrier does not have any Dive Bombers in any slots. However, the Torpedo Bomber's torpedo damage is not taken into account in damage against them.

• Depending on the kind of Installation, the following equipment can give bonuses: Type 3 Shell; Daihatsu-class Landing Craft; Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines); Type 2 Ka-Mi Tank; WG42 (Wurfgerät 42); Type 91 Armor-Piercing (AP) Shell; and Type 1 Armor-Piercing (AP) Shell.

• Installation attack power is calculated in the same way as Carriers, though Installations can vary in the ship designation they have.

Installation Types

There are a number of Installations, all differing significantly in their make-up, strengths, weaknesses, and stats.

• Soft Installations

These are the normal installations that make up the majority of the ones introduced in earlier maps, besides those mentioned below.

• Pillbox

Pillboxes, or Artillery Imps, are smaller installation-type Abyssals that generally have lower health and more vulnerabilities than other installations.

• Supply Depot Princess

The Supply Depot Princess is significantly weaker to the WG42 than other Installations.

• Isolated Island Princess

The Isolated Island Princess is also significantly weaker to the WG42, but has less post-cap weaknesses than the Supply Depot Princess.

• Central Princess

The Central Princess takes increased damage from Dive Bombers and Seaplane Bombers during opening strikes. Her Damaged/Corrupted form takes increased damage from the WG42 and Type 2 Ka-Mi tank, though using both will cancel the Tank's bonus.

Installation-specific Damage Bonuses

(Note: "per ★" refers to each point of Improvement on the equipment, up to a MAX of 10.)

	Pre-Cap	--	--	Post-Cap	--	--
	Soft Installations (incl. Supply Depot)	Artillery Imps	Isolated Island Hime	Supply Depot	CA(V), (F)BB(V), CV(B)	PT Imps
Type 3 Shell	x2.5	x1	x1.75	x1	x1	x1.3
DD/CL	x1	x1.4	x1	x1	x1	x1
Daihatsu-class Landing Craft	?	x(1.8+0.036 per ★)	x(1.8+0.036 per ★) (?)	x1 (?)	x1	x1
Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines)	?	x(2.15+0.043 per ★)	x(2.15+0.043 per ★) (?)	x(1.3+0.026 per ★)	x1	x1
2x Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines)	?	x(3.0+0.06 per ★)	x(3.0+0.06 per ★) (?)	x(2.08+0.0416 per ★)	x1	x1
Type 2 Ka-Mi Tank	?	x(2.4+0.08 per ★)	x(2.4+0.08 per ★)	x(1.7+0.051 per ★)	x1	x1
WG42 (Wurfgerät 42)	+75	x1.6+75	x1.4+75	x1.25	x1	x1
2x WG42 (Wurfgerät 42)	+110	x2.72+110	x2.1+110	x1.625	x1	x1
AP Shell	x1	x1.85	x1	x1.08	x1.08	x1
AP Shell + Radar	x1	x1.85	x1	x1.1	x1.1	x1
AP Shell + Secondary	x1	x1.85	x1	x1.15	x1.15	x1
Seaplane Bomber	x1	x1.5	x1	x1	x1	x1
Seaplane Fighter	x1	x1.5	x1	x1	x1	x1
2 Small Main Guns	x1	x1	x1	x1	x1	x1.2
2 AA Guns	x1	x1	x1	x1	x1	x1.1
2 Secondary Guns	x1	x1	x1	x1	x1	x1.2

Notes:

• The Seaplane Bomber/Fighter bonus is effective for that ship's Base Attack Power even if the slot is zero (all planes have been shot down).