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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-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).