World 4/4-1

World 4-1: ジャム島攻略作戦 Battle of Jam Island

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Strategy Name	ジャム島攻略作戦 (Jam Island Capture Tactics)
Difficulty	☆ ☆ ☆ ☆
Item
Strategy Content	西方作戦の第一弾として、ジャム島攻略作戦を展開せよ！ (対潜警戒を厳とせよ) As the first step of the Western strategy, carry out an operation to capture Jam Island! (Take Anti-Submarine Precautions)

4-1 Light Fleet
Fleet	1CA(V), 1CL, 4DD
Route	Random. A B D H J C F H J
Other Notes
AP	AS	AS+
16	36	72

4-1 Heavy Fleet
Fleet	2CV(L), 1CLT, 3XX (XX can't be (F)BB(V) or CV(L))
Route	Random. A B D G J C F D G J
Other Notes
AP	AS	AS+
16	36	72

Stage Guide

4-1 Branching Rules
Nodes		Rules
Start	A	Random routing
	C
C	E	If (F)BB(V)+CV(L/B) ≥ 5, go to E. If (F)BB(V)+CV(L/B) ≤ 2, go to F. If (F)BB(V)+CV(L/B) = 4, 30% F, 70% E Else, random routing (50/50)
	F
D	G	Random routing if fleet contains any SS(V) If (F)BB(V)+CV(L/B) ≥ 5, go to H. Otherwise Meeting ANY of the following to FORCE G DD+DE ≤ 1 Fleet contains any (F)BB(V) or CV(B/L) AND DD = 3 Fleet contains any (F)BB(V) or CV(B/L), CL = 0 AND DD ≤ 3 (F)BB(V)+CV(L/B) = 4 Meeting ANY of the following to go to H Fleet contains no (F)BB(V) and CV(B/L) DD ≥ 4 CA(V) ≥ 1 AND CL+CA(V) ≥ 3 Random routing if not meeting any of the above conditions
	H
F	D	Do not meet the requirements to go to H.
	H	Meet ALL of the following requirements: No (F)BB(V) or CV(L/B) Meet one of the following Amount of DD ≥ 4 and CL ≥ 1 DD+DE = 6
H	I	Meeting ANY of the following FORCES you to I: (F)BB(V)+CV(L/B) ≥ 5 Fleet contains SS(V) Go to J if amount of (F)BB(V)+CV(L/B) ≤ 1 AND DD ≥ 2 Else, random routing.
	J

Tips

This map is mostly randomized on the path you take, with few notable exceptions that should be considered:

• Avoid bringing too many (F)BB(V) and CV(L).
• A well-balanced fleet is recommended for tackling this map.
• While dedicated ASW setups are not necessary, mixed ASW set-up can be considered for DDs.

Recommended Fleets

• 1CL, 2DD, 3AV/CLT/CA(V)
• 1CL, 2DD, 2CA(V), 1BB(V)/CV(L)
• Route = Random :
  • A B D H J
  • C F D H J
  • Will always fight 3 battles pre-boss but allow stronger ships that help withstand enemy shots compared to the light comp.

• 1CA(V), 1CL, 4DD
• Route = Random :
  • A B D H J
  • C F H J
  • Cheapest composition, but requires high-level CL and DDs as they need to dodge the closing torpedo if they didn't disable all of the enemies CAs, CLs, and DDs in advance.

• 2CV(L), 1CLT, 3XX (XX can't be (F)BB(V) or CV(L))
• Route = Random :
  • A B D G J
  • C F D G J
  • Heaviest comp, with a slightly harder pre-boss, as you will always go to Node G where Battleship Ta-Class are awaiting, in exchange, you get to bring CV(L)s for opening airstrikes and more firepower on the way to the boss and at the boss node itself.

Nodes and Enemy Encounters

Show/Hide Nodes and Enemy Encounters

Nodes and Enemy Encounters
Node	Pattern	Xp	Node Info	Form	Air
A 敵水雷戦隊	Pattern 1
	Pattern 2
	Pattern 3
B Resource Node	Pattern 1		+ 10 15 40
C 敵哨戒艦隊	Pattern 1
	Pattern 2
	Pattern 3
D 敵東方潜水艦隊 警戒隊	Pattern 1
	Pattern 2
	Pattern 3
	Pattern 4
	Pattern 5
	Pattern 6
E 敵増援強襲輸送船団	Pattern 1
	Pattern 2
	Pattern 3
	Pattern 4
	Pattern 5
F Battle Avoided	Pattern 1		"Must be my imagination" (battle avoided)
G 東方艦隊 先遣戦艦部隊	Pattern 1
	Pattern 2
	Pattern 3
H 敵深海連合巡洋艦戦隊	Pattern 1
	Pattern 2
	Pattern 3
	Pattern 4
I Battle Avoided	Pattern 1		"Must be my imagination" (battle avoided)
J 敵深海連合部隊 司令部艦隊	Pattern 1
	Pattern 2
	Pattern 3				AP:16 AS:36 AS+:72
	Pattern 4				AP:16 AS:36 AS+:72
	Pattern 5				AP:16 AS:35 AS+:69
	Pattern 6

World 4/4-1/Drop list