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Combat/Anti-Installation

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Introduction

Installations are an enemy type in game that is characterised by high armour and high HP. They are difficult to handle using normal anti-ship setups and require specific setups in order to destroy. Installations are typically found as bosses or as boss escorts.

General Characteristics

  • They cannot be targeted by torpedoes.
    • Opening and closing torpedoes will fail to trigger if only installation targets remain.
  • 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.
  • Submarines can attack installations during shelling if equipped with a Type 2 Ka-Mi Tank.
    • They will be able to attack installations at night regardless of equipment.
    • Their low firepower makes them poor anti-installation ships.
  • Only dive bombers will attack installations during the air strike phase.
  • Carriers will only attack installations in the shelling phase if equipped with torpedo bombers or anti-installation dive bombers.
  • Carriers are unable to perform cut-ins on installations, even if equipped with anti-installation dive bombers.
  • They have different damage statuses instead of the normal ones used for ships.
Ship Damage Label Installation Damage Label
Lightly Damaged

(小破)

Confused

(混乱)

Moderately Damaged

(中破)

Damaged

(損害)

Heavily Damaged

(大破)

Broken

(損壊)

Sunk

(撃沈)

Destroyed

(破壊)


Installation Classification

Installations are classified by two categories, Ship Type (BB, BBV, CV) and skin toughness (Hard, Soft).

Ship Type

Battleship (BB)

Aviation Battleship (BBV)

  • Most installations fall under this category.
  • They use the carrier attack formula for calculating damage.
  • They use the shelling attack animation in day and night battle.
  • They cannot attack during the day if heavily damaged.
  • They are forced to attack submarines if they have equipment with an ASW Anti-Submarine stat.

Carrier (CV)

  • Example is Lycoris Princess.
  • They use the carrier attack formula for calculating damage.
  • They use the carrier attack animation in day battle and the shelling animation at night.
  • They cannot attack during the day if moderately damaged.
  • They do not enable the 2nd shelling phase if there is no battleship present.

Skin Toughness

Soft Skin

Hard Skin

Damage Bonuses

Please see Damage Calculations for more details on how anti-installation damage is calculated.

  • During day, damage is capped at 180 so any ship with a proper anti-installation setup will be able to hit the cap.
    • When facing hard-skinned installations, it is better for battleships to have AP shells instead of Type 3 because they will hit the day cap anyway.
  • Anti-installation is very important during night battle when the cap is raised to 300. This is due to the torpedo stat being ignored.
  • Supply Depot Princess is the only known installation that takes post-cap damage from anti-installation equipment.
    • This makes her vulnerable to getting one shot by nuke setups. See below for details.
  • Upgrades make landing craft and amphibious tanks a lot more effective for anti-installation use.
  • Pairing rockets or mortars give better multipliers than using them individually. Eg. WG/WG instead of WG/T4.
  • While dive bombers have a post-cap bonus during the air-strike, the low base damage means it is of limited effectiveness against high armour installations.

Pre-Cap Bonuses

Multiplicative Bonuses
Equipment Name Artillery Imp Isolated Island Demon Soft-Skinned[1] Harbour Summer Princess
Single Multiple Single Multiple Single Multiple Single Multiple
Anti-Aircraft Shells - 1.75 2.5 1.75
Armour-Piercing Shells 1.85 - - 1.3
WG42 (Wurfgerät 42) 1.6 2.72 1.4 2.1 1.3 1.82 1.4 1.68
Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 1.5 2.7 1.3 2.145 1.25 1.875 1.25 1.75
Mortars 1.3 1.95 1.2 1.68 1.2 1.56 1.1 1.265
Landing Crafts 1.8 1.8 1.4 1.7
Toku Daihatsu-class Landing Craft 1.15 1.15 1.15 1.2
Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines) 1.5 2.1 1.2 1.68 1.5 1.95 1.6 2.4
Toku Daihatsu Landing Craft + 11th Tank Regiment 1.8 1.8 1.8 1.8
M4A1 DD[2] 1.1 ?? 1.1 2.0
M4A1 DD[3] 1.4
Landing Craft Upgrade Bonus [math]1 + \dfrac{\left( \text{Average Landing Craft}\ \bigstar \right)}{50}[/math]
Type 2 Ka-Mi Tank 2.4 3.24 2.4 3.24 1.5 1.8 2.8 4.2
Tank Upgrade Bonus [math]1 + \dfrac{\left( \text{Average Landing Craft}\ \bigstar \right)}{30}[/math]
Dive Bombers[4] 1.5 ?? 1.4 ?? - 1.3 ??
Seaplane Bombers

Seaplane Fighters

1.5 - 1.2 1.3
Destroyers

Light Cruisers

1.4 - - -
Land-Based Air Squadron 1.6 1.18 - -
  1. Supply Depot Princess, Harbor Princess and Northern Princess.
  2. Specific bonus.
  3. General bonus.
  4. Only certain dive bombers are able to attack installations in shelling.
Additive Bonuses
Equipment Name Number Equipped
1 2 3 4
WG42 (Wurfgerät 42) 75 110 140 160
Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 55 115 160 190
Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment) 80 170 ?? ??
Type 2 12cm Mortar Kai 30 55 75 90
Type 2 12cm Mortar Kai (Concentrated Deployment) 60 110 150 ??
Toku Daihatsu Landing Craft + 11th Tank Regiment 25
M4A1 DD 25
Submarines 30

Post-Cap Bonuses

Multiplicative Bonuses
Equipment Name Supply Depot Princess
Single Multiple
Anti-Aircraft Shells -
Armour-Piercing Shells -
WG42 (Wurfgerät 42) 1.25 1.625
Shipborne Model Type 4 20cm Anti-ground Rocket Launcher 1.2 1.68
Mortars 1.15 1.38
Landing Crafts 1.7
Toku Daihatsu-class Landing Craft 1.2
Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines) 1.3 2.08
Toku Daihatsu Landing Craft + 11th Tank Regiment -
M4A1 DD 1.2
Landing Craft Upgrade Bonus[1] [math]1 + \dfrac{\left( \text{Average Landing Craft}\ \bigstar \right)}{50}[/math]
Type 2 Ka-Mi Tank 1.7 2.55
Tank Upgrade Bonus [math]1 + \dfrac{\left( \text{Average Landing Craft}\ \bigstar \right)}{30}[/math]
Dive Bombers[2] -
Seaplane Bombers

Seaplane Fighters

-
Destroyers

Light Cruisers

-
Land-Based Air Squadron 2.1
  1. The Daihatsu+T89 landing craft gets double the improvement bonus. Multiply the anti-installation damage bonus contributed by the T89 again with it's specific upgrade bonus.
  2. Only certain dive bombers are able to attack installations in shelling.

Important Notes

  • Carrier-based dive bombers, seaplane bombers and land-based attack aircraft have further multiplicative and additive post-cap bonuses versus certain installations during airstrikes.
    • Artillery Imp - 1.55x
    • Isolated Island Demon - 1.7x
    • Supply Depot Princess - +100

Equipment Setups

Below are recommended equipment setups for anti-installation. If a setup is not listed, it means that it is subpar and not worth considering. The order of the equipment is for illustrative purposes only. It does not matter what order the equipment are in.

Battleships
Equipment Setup Notes
Large Caliber Main GunLarge Caliber Main GunSeaplane Armor Piercing Ammunition This setup is the basic setup for battleships. Because battleships can hit the damage cap easily, they do not benefit much from anti-installation equipment. The standard artillery spotting setup will allow them to be effective against all other targets including the installation.
Large Caliber Main GunLarge Caliber Main GunSeaplane Sanshiki "Beehive" Ammunition This is an option where you will be facing soft-skinned installations. Taking a Type 3 shell will limit the battleship's effectiveness against all other targets. Careful consideration must be made into whether it is worth it.
Large Caliber Main GunLarge Caliber Main GunSeaplane Landing Craft /Amphibious Tank An alternative setup for Nagato Kai Ni and Mutsu Kai Ni. The landing craft/amphibious tank will make their Touch attacks deal significant damage to installation enemies. Keeping the seaplane, allows them to perform artillery spotting to maintain some effectivenes against other targets.
Large Caliber Main GunLarge Caliber Main GunSeaplane Sanshiki "Beehive" AmmunitionArmor Piercing Ammunition This is a unique setup available to Musashi Kai Ni that allows her to have the best of both worlds.
Heavy Cruisers
Equipment Setup Notes
Intermediate Caliber Main GunIntermediate Caliber Main GunSeaplane Sanshiki "Beehive" Ammunition This is the standard anti-installation setup for all heavy cruisers. It allows them to artillery spot and deals decent damage against installations.
Intermediate Caliber Main GunIntermediate Caliber Main GunAnti-Ground ArtillerySanshiki "Beehive" Ammunition This is an alternative setup only for aviation cruisers. It removes the ability to artillery spot for much more powerful anti-installation damage at night.
Light Cruisers
Equipment Setup Notes
Landing Craft Amphibious Tank Anti-Ground Artillery This is the standard "nuke" setup. It has powerful anti-installation power against all installations but is hampered by the daytime damage cap. It performs best at night or when up against Supply Depot Princess.
Intermediate Caliber Main GunIntermediate Caliber Main GunAnti-Ground ArtilleryAnti-Ground Artillery An alternative setup for 4-slot light cruisers. This preserves their ability to double attack at night while giving them significant anti-installation power.
Destroyers[1]
Equipment Setup Notes
Landing Craft Amphibious Tank Anti-Ground Artillery Same as the "nuke" setup used by light cruisers. It has powerful anti-installation power against all installations but is hampered by the daytime damage cap. It performs best at night or when up against Supply Depot Princess.
Small Caliber Main GunSmall Caliber Main GunLanding Craft /Amphibious Tank This is an alternative setup that preserves their ability to double attack at night while maintaining decent anti-installation power. This setup works best if the Landing Craft or Amphibious Tanks are upgraded to maximise damage. It also allows them to perform well against non-installation targets at night.
Landing Craft /Amphibious Tank Anti-Ground ArtilleryAnti-Ground Artillery An alternative "nuke" setup if you are lacking Landing Craft or Amphibious Tanks. It will still deal significant damage to Supply Depot Princess.
Small Caliber Main GunSmall Caliber Main GunAnti-Ground ArtilleryAnti-Ground Artillery This setup is currently unique to Tashkent. It functions much like the light cruiser setup with a powerful night battle double attack.
Carriers/Light Carriers
Equipment Setup Notes
Dive Bomber Torpedo Bomber Fighter Fighter This is only to be used if you have one of the anti-installation dive bombers. It will allow the carrier to still perform CVCI against other targets.
Torpedo Bomber Torpedo Bomber Fighter Fighter The numbers of torpedo bombers and fighters in this setup can be varied depending on the amount of fighter power required. This is the standard carrier anti-installation setup. While it does sacrifice CVCI, the carrier shelling formula and proficiency bonuses still ensures that carriers will do significant damage to installations and other targets.
Seaplane Tenders
Equipment Setup Notes
Landing Craft Amphibious Tank Anti-Ground ArtilleryWildcard Same "nuke" setup used by light cruisers. For 4-slot AVs, they can either take a 2nd anti-ground rocket or a seaplane fighter as the wild card. It has powerful anti-installation power against all installations but is hampered by the daytime damage cap. It performs best at night or when up against Supply Depot Princess.
  1. High-angle main guns can stand in for the small-caliber main guns.

Additional Information

Landing Craft/Amphibious Tank Capable Ships

Ship Name Landing Craft
Landing Craft
Amphibious Tank
Landing Craft
Ship Name Landing Craft
Landing Craft
Amphibious Tank
Landing Craft
Ship Name Landing Craft
Landing Craft
Amphibious Tank
Landing Craft
Destroyers
Mutsuki Kai Ni Yes No Kisaragi Kai Ni Yes No Satsuki Kai Ni Yes Yes
Fumizuki Kai Ni Yes Yes Verniy Yes Yes Shiratsuyu Kai Ni No Yes
Murasame Kai Ni Yes No Umikaze Kai Ni Yes Yes Kawakaze Kai Ni Yes No
Asashio Kai Ni D Yes Yes Ooshio Kai Ni Yes Yes Michishio Kai Ni Yes Yes
Arashio Kai Ni Yes Yes Kasumi Kai Ni Yes Yes Arare Kai Ni Yes Yes
Kuroshio Kai Ni No Yes Makigumo Kai Ni Yes No Kazagumo Kai Ni No Yes
Asashimo Kai Ni No Yes
Light Cruisers
Tatsuta Kai Ni Yes Yes Tama Kai Ni Yes Yes Yura Kai Ni Yes Yes
Kinu Kai Ni Yes Yes Abukuma Kai Ni Yes Yes
Battleships
Nagato Kai Ni Yes Yes Mutsu Kai Ni No Yes
Seaplane Tenders
Chitose Yes Yes Chiyoda Yes Yes Mizuho Yes Yes
Nisshin Yes No Nisshin Kai Yes Yes Akitsushima Yes Yes
Kamoi Kai Yes Yes Commandant Teste Kai Yes Yes
Fleet Oilers
Hayasui Yes Yes Kamoi Kai Bo Yes Yes
Amphibious Landing Ship
Akitsumaru Yes Yes

Installation List

See Also