World 6-3: K作戦 Operation K

Strategy Name
K作戦 (Operation K)
Difficulty
☆ ☆ ☆ ☆ ☆ ☆ ☆
Item
Depends
Strategy Content
飛行艇または水上偵察機を装備した水上機母艦・軽巡・駆逐艦による艦隊を同方面へ進出、航空偵察「K作戦」を実施せよ!
Sortie to this region with light cruisers, destroyers, and seaplane tenderd equipped with Flying boats 
 
or recon seaplanes, and undertake the air reconnaissance "Operation K"!
6-3 Heavier fleet
Fleet 1AV, 1CL, 1DD, 3AV/CL/DD
Route A C E F H J
Other Notes
AP AS AS+
0 0 0
6-3 Light fleet
Fleet 1AV, 1CL, 4DD
Route A C E G H J
Other Notes
AP AS AS+
0 0 0

Stage Guide

6-3 Branching Rules
Nodes Rules
A
B
  • Choice node
C
E
F
  • Meet ANY of the following to go to F
    • Amount of AV+CL ≥ 4
    • Amount of AV ≥ 2
  • Go to G if CL ≤ 1 and DD ≥ 3
  • Otherwise, random routing (More likely to go to F)
G
G
H
  • Fixed route
H
I
  • Fail the LoS check
    • Random routing if the 36 ≤ LoS ≤ 38 (Cn3)
J
  • Pass the LoS check: > 38 (Cn3)


Tips

Regarding the map

Requires 4 Boss kills to deplete the HP gauge.

  • Once the map is cleared, you can no longer roll the Final Form at the boss node.
  • Only AVs, CLs, CTs, and DDs are allowed!
    • Specifically at least 1AV, 1CL, and 1DD. CLT cannot be used here.

Node notes

  • Node C is a normal submarine node
  • Node B can be a submarine node, but isn't always.
    • The only reason to head towards B is to have a fleet that cannot/don't want to face SS So-Class Elite at node C. But doing so requires an additional fight which is not preferable.
  • A CL Tsu-Class Elite can show up at node E.
  • Node G can be guaranteed with 4 DDs in the fleet.


Recommend Fleets

AVs and CLs able to carry a Midget Submarine 
 
 
are advised in every composition.

  • Because you can only deploy AV/CL/CT/DD, it is unlikely that your fleet win during daytime battle. You should expect the battle to last into nighttime.
  • Using Seaplane Bombers on your AV's biggest slots can help you achieve AS and Artillery Spotting.

  • 1AV, 1CL, 1DD, 3AV/CL/DD
  • 2AV, 3CL, 1DD
  • Route = A C E F H J
    • Has the highest damage output at the boss, especially since the boss fight almost always requires night battle.
    • Needs to fight an extra battle against a fleet led by a CA Ne-Class Elite

  • 1AV, 1CL, 4DD
  • Route = A C E G H J
    • The most cost-effective way to get to the boss, and guarantees G branching, which allows two air reconnaissance rewards.
    • The setup with the lowest damage output. It may not consistently get a victory at the boss.

  • 1AV, 2CL, 3DD
  • Route = Random:
    • A C E G H J
    • A C E F H J
    • Has better damage over the Light fleet, and on the shortest route, can fight at the boss with better damage output.
    • Has to deal with RNG. Being sent to Node F may hurt a bit more.

Air Reconnaissance Mechanic

On Nodes G and H, Seaplanes will be flown towards the "green X" (the recon route is shown on the map as green arrows).

  • Successful reconnaissance will reward additional resources upon getting a B+ rank on the boss.
    • Neither G or H have combat.
    • Animation will be shown for the Air Reconnaissance; if both   Large Flying Boats 
       
      and other   Seaplanes (SPR and SPB) are brought, Flying Boat animation takes priority.
    • Success rate of the air reconnaissance depends on the LoS and Seaplanes count.
    • All reconnaissance rewards are forfeit if the fleet fails to win at the boss node J.

The formula for Air Reconnaissance is:

Air Reconnaissance Success Formula
[math]\displaystyle{ R = \sum_{\text{SPR ; SPB} } \text{LoS} \times \sqrt{\sqrt{\text{Plane}_\text{Count} } } + \sum_{\text{Flying Boats} } \text{LoS} \times \sqrt{\text{Plane}_\text{Count} } }[/math]
With
  • [math]\displaystyle{ \text{LoS} }[/math] is the base LoS   of the plane without fit bonuses.
  • [math]\displaystyle{ \text{Plane}_\text{Count} }[/math] is the remaining amount of planes in a slot.
Notes
  • The minimum "[math]\displaystyle{ R }[/math]" to achieve success is 12 for G and 16 for H.
  • For Great Success, the requirement is
[math]\displaystyle{ R_\text{GS} = R \times (1.6 + rand(0 ; 0.6)) }[/math]
  • This means that the minimum and maximum requirement for Great Success for H is 25.6 and 35.2.
 
Air recon success shown after boss node win

To sum up, the more LoS and Seaplanes used, the better, with Flying Boats counting for more than other seaplanes.

Rewards for Nodes G and H
Normal Success
Item Chance to Obtain
80  5 % 30 %
60  10 %
50  15 %
50  5 % 35 %
40  10 %
30  20 %
1   35 %
Great Success
Item Chance to Obtain
200  5 % 30 %
150  10%
100  15%
150  5% 30 %
100   10%
80   15%
4   5 % 40 %
3   10 %
2   25 %


Nodes And Enemy Encounters

Show/Hide Nodes and Enemy Encounters
Nodes and Enemy Encounters
NodePatternXpNode InfoFormAir
A
Choose your route
Pattern 1Choose your route
B
泊地哨戒線
Pattern 1      
Pattern 2    
Pattern 3     
Pattern 4    
C
深海潜水艦隊
Pattern 1      
Pattern 2       
Pattern 3      
D
深海ピケット艦隊
Pattern 1     
Pattern 2     
Pattern 3    
E
深海哨戒水雷戦隊
Pattern 1      
Pattern 2       
Pattern 3      
F
深海中部水上打撃群
Pattern 1      
Pattern 2      
Pattern 3      
G
Pattern 1
H
Pattern 1
I
Battle Avoided
Pattern 1"Must be my imagination" (battle avoided)
J
留守泊地旗艦艦隊
Pattern 1       
Pattern 2       
Pattern 3       
Pattern 4       
Pattern 5       
Pattern 6       

World 6/6-3/Drop list