World 1/1-4

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World 1-4: 南西諸島防衛線 - Nansei Islands Defense Line

 
Strategy Name 南1号作戦
1st Southern Operation
Difficulty ☆ ☆ ☆
Item      
Strategy Content 南西諸島の防衛ライン上の敵侵攻艦隊を捕捉、全力出撃でこれを撃滅せよ!
An enemy invasion fleet is pressing on the defensive line in the Nansei Islands. Sail out in full force and destroy them!
Boss Air Control
AD AP AS AS+
9 14 30 60
Boss Route Air Control
AD AP AS AS+
8 11 24 48
1-4 Unlocking & Progression
Unlock conditions 1-4 is unlocked after clearing 1-3
Clear conditions To clear the map: the boss's flagship must be sunk once

Stage Guide

1-4 Branching Rules
Nodes Rules
Start
A
  • Random routing
B
B
C
  • Meet ANY of the following to FORCE D
    • Fleet contains no DD and DE
    • CV(B/L) ≥ 3
    • (F)BB(V) ≥ 3
  • Go to C if DD+DE ≥ 3
  • Otherwise, random routing
    • If fleet contains CL, 80 % to C
    • Otherwise, 65 % to C
D
D
E
  • Go to E if fleet contains AS
  • Go to G if fleet contains AV
  • Otherwise, random routing
G
F
E
  • Meet ANY of the following to go to E
    • DD+DE ≥ 4
    • Fleet contains AV and DD+DE ≥ 2
    • BBV ≥ 2 and DD+DE ≥ 2
  • Random between E and H if DD+DE ≥ 2
  • Otherwise, random routing between H and I.
H
I
J
K
  • Meet ANY of the following to go to L
    • DD ≥ 4 and SS(V) = 0
    • Fleet contains both AV and CL, with DD+DE ≥ 2
  • Otherwise, random routing
L

Tips

This is the first map in which the enemy fleets possess carriers, with at least one carrier on the route and one on the boss.

  • The fleet will notably be attacked by enemy bombers in the opening airstrike.

To deal with enemy carriers, it is possible to:

  • To bring air power, through fighters notably, in order to ensure air superiority (AS), and mitigate the enemy air power.
    • Bring a CV(B/L) is the simpler way, but ships capable of carrying  Bomber/  seaplane bombers/fighters are also an option, notably AV.
  • Ignore the enemy carriers, which is possible with durable ships (at least CL, preferably CA or higher), and anti-air set-ups such as AACI.

This map is also convenient for completing Bw2, as it can bring 2 to 4 CV(L) kills per run.

  • Preferably done with a fleet of three SS, the echelon formations here hurting them far less than those in 2-2.

Recommended Fleets

Standdard Fleets
Fleet Info
Single 1 CL, 2 DD, 1 AV, 2 XX

4 DD, 2 XX (XX cannot be SS(V))

LoS Any
Speed Any
RouteNode Types:
BLUE: Empty/Choice
RED: Battle
GREEN: Resource/TP
VIOLET: Maelstrom
PURPLE: Night Battle
PINK: Air Raid/Battle
ORANGE: Enemy Ambush/ASS
Random:
  • Needs 3-5 DD+DE to also avoid BD branching
Air State
AD AP AS AS+
9 14 30 60
Fleet Notes
Standard comps to reach the boss, with no major challenge on the route.
AS Fleets
Fleet Info
Single 1 AS, 5 XX
LoS Any
Speed Any
RouteNode Types:
BLUE: Empty/Choice
RED: Battle
GREEN: Resource/TP
VIOLET: Maelstrom
PURPLE: Night Battle
PINK: Air Raid/Battle
ORANGE: Enemy Ambush/ASS
Random:
  • Avoids J
  • Needs 3-5 DD+DE to also avoid BD branching
Air State
AD AP AS AS+
9 14 30 60
Fleet Notes
A more permissive comp, for exautic quests notably.

Resource Nodes

C E G are "Normal Resource Nodes" rewarding respectively steel  , ammo  , and bauxite  .

  • See here for more details.

Enemy Compositions

1-4 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
1-4 B: 敵偵察艦隊 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
B Line Ahead
Double Line
90          0/0
0/0
Line Ahead
Double Line
90          0/0
0/0
Line Ahead
Double Line
90            0/0
0/0
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-4 C
# Resource Node
C Gained 10~20  
# Resource Node
1-4 D: 敵偵察艦隊 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
D Line Ahead
Double Line
90          0/0
0/0
Line Ahead
Double Line
90          0/0
0/0
Line Ahead
Double Line
90            0/0
0/0
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-4 E
# Resource Node
E Gained 10~20  
# Resource Node
1-4 F
# Empty Node
F 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
1-4 G
# Resource Node
G Gained 10~20  
# Resource Node
1-4 H: 敵前衛任務部隊I軍 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
H Diamond 100            6/11
24/48
Diamond 120             
6/11
24/48
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-4 I: 敵前衛任務部隊II群 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
I Diamond 90            3/6
12/24
Diamond 100            6/11
24/48
Diamond 110             
6/11
24/48
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-4 J: 敵支援打撃任務群 (PoiDB)
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
J Line Ahead
Double Line
110             
0/0
0/0
Line Ahead
Double Line
120             
3/6
12/24
Line Ahead
Double Line
130             
6/11
24/48
# Enemy
Form.
Base EXP Normal Battle Node AD/AP
AS/AS+
1-4 K
# Empty Node
K 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
1-4 L: 敵機動部隊 (PoiDB)
# Enemy
Form.
Base EXP Boss Battle Node AD/AP
AS/AS+
L Diamond 120             
4/7
15/30
Diamond 125             
4/7
15/30
Diamond 130             
7/13
27/54
Diamond 135             
7/13
27/54
Diamond 140             
7/14
30/60
Diamond 150             
7/14
30/60
# 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? B D H I J L
DD Asashimo ✔️
DD Makigumo ✔️
CL Nagara ✔️ ✔️ ✔️ ✔️ ✔️
CL Sendai ✔️
CA Kinugasa ✔️
CA Myoukou ✔️ ✔️ ✔️
CVL Ryuujou ✔️
CVL Shouhou ✔️
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 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 Kagerou ✔️ ✔️ ✔️ ✔️ ✔️
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 ✔️ ✔️ ✔️ ✔️ ✔️ ✔️
CA Nachi ✔️ ✔️ ✔️
CA Ashigara ✔️ ✔️ ✔️ ✔️
CA Haguro ✔️ ✔️ ✔️ ✔️
CA Maya ✔️
CA Choukai ✔️
CVL Houshou ✔️ ✔️ ✔️ ✔️ ✔️
AV Chitose ✔️ ✔️ ✔️ ✔️
AV Chiyoda ✔️ ✔️ ✔️ ✔️