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Support Expedition

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On certain maps, it is possible to call "support expeditions" to help the fleet during battles. These expeditions are deployed like normal resource expeditions and have a chance of appearing at certain nodes or at the boss.

Overview

Expedition List

Areas that have support expeditions available for use have support expeditions listed under the expedition tab for the corresponding area:

  • World 5:
    • Node support
    • Boss support
  • Events:
    • Node support
    • Boss support

It behaves differently than other expeditions:

  • Instead of the normal 3 morale reduction for normal expeditions, the morale loss from support expeditions varies:
    • Node support: 1-5
    • Boss support: 1-10
  • The resource cost is rounded up instead of down.
World 5 Icon.png
南方海域 - Southern Waters
# Name Time Σ(Lv) Flagship icon.png Minimum Fleet Requirements Fuel Ammunition
33 前衛支援任務
Vanguard Support Mission
"Node Support"
00:15 - - 2DD 4XX -5 -4
(Airstrike/ASW)
-8
(Shelling/Torpedo)
34 艦隊決戦支援任務
Decisive Battle Fleet Support Mission
"Boss Support"
00:30 - - 2DD 4XX -5 -4
(Airstrike/ASW)
-8
(Shelling/Torpedo)


Event Expeditions
# Name Time Σ(Lv) Flagship icon.png Minimum Fleet Requirements Fuel Ammunition
S1 前衛支援任務
Vanguard Support Mission
"Node Support"
00:15 - - 2DD 4XX -5 -4
(Airstrike/ASW)
-8
(Shelling/Torpedo)
S2 艦隊決戦支援任務
Decisive Battle Fleet Support Mission
"Boss Support"
00:30 - - 2DD 4XX -5 -4
(Airstrike/ASW)
-8
(Shelling/Torpedo)
A shelling Support Expedition appears in a night battle node

Steps

  1. Deploy the support fleet in the expedition menu,
  2. Send another fleet in sortie,
  3. The support expedition will come back automatically once the sortie ends, even if she did not show up.

Support expeditions will always consume resources, regardless of whether they have performed a support attack.

Node

  • Nose support may appear on most battle nodes. But not on boss nodes.
    • Note that only aerial support can appear on Submarine Nodes or Airstrike Supported Battle.
    • Note that aerial support cannot appear during night battle.
  • Boss support can appear only on boss nodes.

Support type

There are 4 types of support which are determined by the fleet composition:

  • Shelling support,
  • Aerial supports:
    • Airstrike support,
    • ASW support,
  • Torpedo support,

Trigger Rate

The trigger rate differs between node support and boss support.

Trigger Rate Formula
The base trigger rate for each support is as follow:
[math]\displaystyle{ \begin{align} \text{Node %} &= 51 + \text{Mod}_\text{flag} + 5 \times \text{N}_\text{escort} \\ \text{Boss %} &= 86 + \text{Mod}_\text{flag} + 5 \times \text{N}_\text{escort} \end{align} }[/math]
With
  • [math]\displaystyle{ \text{Mod}_\text{flag} }[/math] being 15 if the flagship is sparkled .
  • [math]\displaystyle{ \text{N}_\text{escort} }[/math] the number of non-flagship sparkled ships.

The following is still under investigation, being approximative

When a Command Facility Fleet Communication AntennaFleet Communication Antenna (FCA) is used, a second trigger roll will be held if the 1st one failed:

[math]\displaystyle{ \text{2nd Roll %} = 5 + 5 \times \text{N} + \text{Mod}_\text{CEP} + 2 \times \bigstar }[/math]
With
  • [math]\displaystyle{ \text{N} }[/math] the number of sparkled ships,
  • [math]\displaystyle{ \text{Mod}_\text{CEP} }[/math] being 20 when using a Command Facility CEPCommunication Equipment & Personnel,
  • [math]\displaystyle{ \bigstar }[/math] the Improved improvement level of the Command Facility FCAFleet Communication Antenna.

[1]

Notes
  • The Command Facility Communication equipmentFleet Communication Antenna
    Communication Equipment & Personnel
    give a bonus only when equipped on the first or second ship of the support fleet.
    • All related bonuses are unclear yet.
  • The flagship affects the trigger rate disproportionately.
    • Always place a sparkled ship as flagship.
  • The maximum chance for node support to trigger with no communication equipment is 91 % and the lowest is 51 %.
    • With Command Facility communication equipment, it can reach ~96 %
    • It is recommended to sparkle all the ships for node support in order to get the maximum trigger chance.
  • Boss support can reach 100% trigger chance with only the flagship sparkled.
    • It is recommended to at least sparkle the four heavy hitters in order to maximize accuracy.

Attack Specification

The support fleet will appear between the Aerial Combat and the Battle Opening phase during day battles.

  • The exception is night-day nodes where airstrike/ASW support arrives after LBAS but before Aerial Combat,
  • The ships attack random targets in the fleet order.
    • To maximize the Scratch Damage, the weakest ships (usually DD) should be placed first.

Damage

Supports use slightly different formulas than regular shelling attacks.

  • Only visible stats are taken into account,
  • The damage cap for supports is 170 in all cases,
    • This means that even if a support shows up in night battle, it does not get the advantage of the 360 damage cap,
  • The only modifier are the engagement and the formation, even in night battles,
  • Misses are also displayed on ships that are not targeted.
  • AO use the surface shelling formula instead of the carrier attack formula for support even when equipped with torpedo bombers.
    • Enemy ships sunk in earlier combat phases are still counted towards contesting air control for airstrike support.

Accuracy

As a consequence, contrary to the rest of the battle, here the accuracy needs to be balanced with the attack power.

Fighter Power

Fleet composition

Meet all of the following requirements:

  • 2 or more (F)BB(V) OR 4 CA(V),
  • No more than 1 CV(B/L)/AV/LHA.
Recommended Composition
  • 2DD, 3(F)BB(V), 1CV(B)
    • Note that using 3BBV will trigger Aerial Support. To avoid Aerial Support, use at least one (F)BB.
Ship should be chosen based on firepowerFirepower, level and luckLuck.

Notes

The attack works similarly to the shelling phase.

  • This support cost huge amount of fuelFuel and ammoAmmunition

Equipment Setups

Any eligible ship type not mentioned in this table is subpar not recommended for use in support. The order of the equipment is for illustrative purposes only. Can be placed in any order.

Equipment Setup Notes
Destroyers
Equipment Card Fleet Communication Antenna.pngEquipment Card Communication Equipment & Personnel.pngRADAR As DD contribute very little to the damage, they are the best suited to equip the Command Facility Communication equipmentFleet Communication Antenna
Communication Equipment & Personnel
and increase the trigger rate of the support without loosing too much damage.
Small Caliber Main GunSmall Caliber Main GunRADAR When running a gun on a destroyer, ensure that it is a gun with bonus fit firepower to maximize her damage potential.
Small Caliber Main GunRADARRADAR For all other destroyers that don't have a fit gun, this setup ensures that they have the maximum chance to land a hit.
Battleships
Large Caliber Main GunRADARRADARRADAR This is for high firepower battleships (>140) like the Yamato-class who can hit the attack cap in parallel with a single high-firepower gun. Stacking all the extra radars will increase the accuracy.
Large Caliber Main GunLarge Caliber Main GunLarge Caliber Main GunLarge Caliber Main Gun This setup should only be used if all guns have at least 4 Accuracy. It allows high firepower without sacrificing accuracy.
Large Caliber Main GunLarge Caliber Main GunLarge Caliber Main GunRADAR This setup should only be used if all guns have at least 3 Accuracy. It allows decent firepower without sacrificing accuracy.
Large Caliber Main GunLarge Caliber Main GunRADARRADAR Without high-accuracy guns use this balanced setup.
Carriers
Dive BomberDive BomberRADARRADAR Carriers that have above 52 firepowerFirepower can hit the parallel attack cap with just two 10Dive Bomber Attack plane. Using planes with a decent power and high accuracy Accuracy is recommended.
Dive-bomber or Torpedo BomberDive-bomber or Torpedo BomberRADARRADAR This is for carriers that have bellow 52 firepowerFirepower. To compensate, planes with high "shelling power" (base attack power given by a plane following the carrier shelling formula) should be used. Using planes with a decent power and high accuracy Accuracy is recommended.

Long Range Torpedo Support

It is the cheapest support but also by far the weakest. In addition, there is a bug that massively reduced the accuracy of this support[1].

Trigger Requirements
  • Do not meet any of the requirements for shelling, airstrike, or ASW support.
Notes
  • Do not bother using this type of support, since it is by design inferior to the previously mentioned ones.


FAQ

See Also