World 1-3: 製油所地帯沿岸 Coastal Refinery Zone

 
Strategy Name
海上護衛作戦 (Maritime Escort Operation)
Difficulty
☆ ☆
Item
Strategy Content
製油所地帯沿岸部の海上輸送ラインを防衛せよ!
Protect the supply lines around our coastal refineries!

Map Unlocking & Progression

1-3 is unlocked after clearing 1-2.

To clear the map, the boss's flagship must be sunk once.

Stage Guide

1-3 Branching Rules
Nodes Rules
Start
A
  • Go to A if fleet contains AO or AV
  • Go to C if fleet contains CV(L)
  • Otherwise, random routing
C
A
D
  • Meet ANY of the following to go to D
    • Fleet contains AO
    • DE ≥ 4
  • Go to E if fleet only contains SS(V)
  • 80% to D if fleet contains AV and DD+DE ≥ 4
  • Otherwise, random routing
E
F
H
  • Go to H if fleet contains any CV(B), slow BBs (BBV doesn't count)
  • Meet ANY of the following to go to J
    • DD ≥ 4
    • Fleet contains CL and DD+DE ≥ 4
  • Otherwise, random routing (The more CV(L/B) you bring, the higher chance you will go to node H)
J
H
G
  • Go to G if fleet contains AO
  • Go to J if fleet contains CL and DD ≥ 2, or fleet contains AV
  • Otherwise
    • If DD ≥ 3, random routing (Very small chance for I)
    • If DD ≤ 2, random routing (Very small chance for G)
I
J


Recommended Fleet

2XX, 4DD(XX can't be any heavy ships such as (F)BB or CV; BBV and CVL are fine, though)

  • guarantees F J branching

Resource Nodes

D G are "Normal Resource Nodes" rewarding both Fuel  .

  • See here for more details.
Normal Resource Nodes Gain Modifiers
Equipment / Ship Bonus Gains (per DLC / Ship)[1]
Type Name    
(& 7-3 O  )
    
  
  A Toku Daihatsu Landing Craft 
Daihatsu Landing Craft 
Armed Daihatsu 
DLC + T89 Tank 
DLC + Panzer II 
Soukoutei 
Toku DLC + Ho-Ni Tank 
3.0 2.0 0.0
  Ka-Mi Tank 
Ka-Tsu Tank 
Ka-Tsu Tank Kai 
  B Drums  2.0 1.5 0.0
  C Toku DLC + 11th Reg 
M4A1 DD 
Toku DLC + Panzer III 
Toku DLC + Chi-Ha 
Toku DLC + Chi-Ha Kai 
Toku DLC + Panzer III J 
0.0
All ships 0.0
Resource Cap N/A
Random Resource Increments 5 0
Notes:
  1. If the total value has a decimal, only the rounded-down value is applied.

Fuel Farming

Node D is a good spot to farm fuel  . The recommended fleet are:

  • Kamoi/Souya, 4-5DD, 0-1SS(V)
  • 1AV/AO, 4-5DD, 0-1SS(V) (if lacking those AO)
  • Route = A D B E

The base gain is 10/15/20  .

  • Has many   Landing Craft and   Amphibious Tanks  should be equipped to maximize fuel gain (+3 per craft).
    •   Drums  work as an inferior substitute (+2 per drum).
    • Only using those equipment in the fleet is a viable solution.
  • When lacking enough Amphibious Tanks for SS(V), Drum-capable SS are recommended as a substitute.
  • When using an AO, the reach rate is 100%, but is only 80% when using an AV instead.
  • Once the first battle is complete, "retreat" and "resupply" before going back out.

If done correctly, this can result in an outstanding fuel gain that can surpass expedition gains.

  • Using "cheap" ships to refuel in the fleet (such as Kamikaze-class and Mutsuki-class) will optimize the fuel consumption/farming.
  • It is alternatively possible to use throwaway DDs with Drums that are never refueled until they are critically damaged, and then scraped to save on resources (do not forget to swap their drums with the new ones before doing this).

Enemy Compositions

1-3 A
# Empty Node
A 気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。
Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
# Empty Node
1-3 B
# Empty Node
B 気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。
Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
# Empty Node
1-3 C: 敵前衛艦隊 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
C Line Ahead 50        0/0
0/0
Line Ahead 60        0/0
0/0
Line Ahead 70        0/0
0/0
Line Ahead 70        0/0
0/0
Line Ahead 80        0/0
0/0
Line Ahead 90          0/0
0/0
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-3 D
# Resource Node
D Gained 10~20  
# Resource Node
1-3 E: 敵前衛艦隊 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
E Line Ahead 50        0/0
0/0
Line Ahead 60        0/0
0/0
Line Ahead 70        0/0
0/0
Line Ahead 70        0/0
0/0
Line Ahead 80        0/0
0/0
Line Ahead 90          0/0
0/0
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-3 F: 敵支援艦隊 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
F Line Ahead
Double Line
65          0/0
0/0
Line Ahead
Double Line
80          0/0
0/0
Line Ahead
Double Line
85          0/0
0/0
Line Ahead
Double Line
90          0/0
0/0
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-3 G
# Resource Node
G Gained 10~30  
# Resource Node
1-3 H
# Maelstrom Node
H Lost Strong  
# Maelstrom Node
1-3 I
# Empty Node
I 気のせいだった。/敵影を見ず。/穏やかな海です。/穏やかな海峡です。/警戒が必要です。/静かな海です。
Must be my imagination./No enemy spotted./Calm seas./Calm straits./Be alert./Peaceful seas.
# Empty Node
1-3 J: 敵主力艦隊 (PoiDB)
# Enemy
Form.
Base EXP Boss Battle Node AD/AP
AS/AS+
J Line Ahead
Double Line
110            0/0
0/0
Line Ahead
Double Line
120            0/0
0/0
Line Ahead
Double Line
130            0/0
0/0
# Enemy
Form.
Base EXP Boss Battle Node AD/AP
AS/AS+

Ship Drops

This map currently has "limited-time" drops that don't appear in the table below, see Drop List for more info.
Ship drops
Type Ship? C E F J
CL Kitakami ✔️
CL Nagara ✔️ ✔️
CL Sendai ✔️ ✔️ ✔️ ✔️
CA Kinugasa ✔️
DD Mutsuki ✔️ ✔️ ✔️ ✔️
DD Kisaragi ✔️ ✔️ ✔️ ✔️
DD Satsuki ✔️ ✔️ ✔️ ✔️
DD Fumizuki ✔️ ✔️ ✔️ ✔️
DD Nagatsuki ✔️ ✔️ ✔️ ✔️
DD Kikuzuki ✔️ ✔️ ✔️ ✔️
DD Mikazuki ✔️ ✔️ ✔️ ✔️
DD Mochizuki ✔️ ✔️ ✔️ ✔️
DD Fubuki ✔️
DD Shirayuki ✔️ ✔️ ✔️ ✔️
DD Hatsuyuki ✔️ ✔️ ✔️ ✔️
DD Miyuki ✔️ ✔️ ✔️ ✔️
DD Murakumo ✔️
DD Isonami ✔️ ✔️ ✔️ ✔️
DD Ayanami ✔️ ✔️ ✔️ ✔️
DD Shikinami ✔️ ✔️ ✔️ ✔️
DD Oboro ✔️ ✔️ ✔️ ✔️
DD Akebono ✔️ ✔️ ✔️ ✔️
DD Sazanami ✔️
DD Ushio ✔️ ✔️ ✔️ ✔️
DD Akatsuki ✔️ ✔️ ✔️ ✔️
DD Hibiki ✔️ ✔️ ✔️ ✔️
DD Ikazuchi ✔️ ✔️ ✔️ ✔️
DD Inazuma ✔️ ✔️ ✔️ ✔️
DD Hatsuharu ✔️ ✔️ ✔️ ✔️
DD Nenohi ✔️ ✔️ ✔️ ✔️
DD Wakaba ✔️ ✔️ ✔️ ✔️
DD Hatsushimo ✔️ ✔️ ✔️ ✔️
DD Shiratsuyu ✔️ ✔️ ✔️ ✔️
DD Shigure ✔️ ✔️ ✔️ ✔️
DD Murasame ✔️ ✔️ ✔️ ✔️
DD Yuudachi ✔️ ✔️ ✔️ ✔️
DD Samidare ✔️
DD Suzukaze ✔️ ✔️ ✔️ ✔️
DD Ooshio ✔️ ✔️ ✔️ ✔️
DD Michishio ✔️ ✔️ ✔️ ✔️
DD Arashio ✔️ ✔️ ✔️ ✔️
DD Arare ✔️ ✔️ ✔️ ✔️
DD Kasumi ✔️ ✔️ ✔️ ✔️
DD Shiranui ✔️ ✔️ ✔️ ✔️
DD Kuroshio ✔️ ✔️ ✔️
CL Tenryuu ✔️
CL Tatsuta ✔️
CL Kuma ✔️
CL Tama ✔️ ✔️ ✔️ ✔️
CL Kiso ✔️ ✔️ ✔️ ✔️
CL Isuzu ✔️ ✔️
CL Natori ✔️ ✔️
CL Yura ✔️ ✔️
CL Jintsuu ✔️ ✔️ ✔️ ✔️
CL Naka ✔️ ✔️ ✔️ ✔️
CA Furutaka ✔️
CA Kako ✔️
CA Aoba ✔️
CVL Houshou ✔️
AV Chitose ✔️ ✔️
AV Chiyoda ✔️ ✔️