World 1/1-3

1-1

1-2

1-3

1-4

1-5

1-6

World 1

World 2

World 3

World 7

World 4

World 5

World 6

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!

Boss Air Control
AD	AP	AS	AS+
0	0	0	0

1-3 Unlocking & Progression
Unlock conditions	1-3 is unlocked after clearing 1-2
Clear conditions	To clear the map: the boss's flagship must be sunk once

Stage Guide

Regarding the branching table:

• BB refers to slow battleship only, FBB (Battlecruiser) and BBV (Aviation Battleship) don't count.
• CL class refers to all CL, CLT and CT in the game.

1-3 Branching Rules
Nodes		Rules
Start	A	Go to A if fleet contains AO or AV Go to C if fleet contains CV(B/L) Otherwise, random routing
	C
A	D	Meet ANY of the following to go to D Fleet contains AO DE ≥ 4 80% to D if fleet contains AV or DD+DE ≥ 4 If DD+DE ≤ 3 Go to E if fleet also contains SS(V) Otherwise, random routing
	E
F	H	Go to H if fleet contains any CV(B) or BB Meet ANY of the following to go to J DD ≥ 4 CL+CT ≥ 1 and DD+DE ≥ 4 CAV ≥ 1 and DD ≥ 2 Otherwise, from top to bottom: If CL class ≥ 1, DD ≥ 2 and all the remaining ships in the fleet are either CL, CLT, CT, DD: 25% H 75% J. If CL = 0, DD+DE ≥ 4: 75% H, 25% J. If fleet contains SS(V): 75% H, 25% J. If fleet doesn't meet any of the conditions above: 50% H 50% J.
	J
H	G	Go to G if fleet contains AO Go to J if CL+CT ≥ 1 and DD ≥ 2 CAV+AV ≥ 1 Otherwise, from top to bottom: If CL+CT ≥ 1 and DD ≤ 1: 65% I 35% J If CL+CT = 0 and DD ≤ 1: 75% I 25% J If CL+CT = 0 and DD ≥ 2: 40% G 18% I 42% J
	I
	J

Tips

This map is the first one to have an enemy battleship, which will enforce a second shelling phase during the day battle.

• It is important to bring strong enough ships to defeat this BB flagship.

This map is also great for farming fuel.

Recommended Fleet

Standard Fleets
Fleet Info Single 4 DD, 2 XX 1 CAV+AV, 2 DD, 3 XX 1 CL+CT, 4 DD+DE, 1 XX LoS Any Speed Any RouteNode Types: RED: Battle PURPLE: Night Battle PINK: Air Raid/Battle ORANGE: Enemy Ambush/ASS BLUE: Empty/Choice Light Blue: Emergency Anchorage Repair GREEN: Resource/TP VIOLET: Maelstrom Random, but will always reach the boss node. Routes can be as the following: C F J A D B E F J A E F J	Air State AD AP AS AS+ 0 0 0 0
Fleet Notes
XX cannot be BB or CV(B), it should be a FBB, BBV, CVL, CA(V), CL, or AV.

Resource Nodes

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

• See here for more details.

Fuel Farming

Node D is a good spot to farm fuel , the base gain being 10/15/20.

Recommended fleets

Fleet Info Single Kamoi/Souya, 4-5 DD, 0-1 SS(V) 1 AV/AO, 4-5 DD, 0-1 SS(V) (if lacking those AO) LoS Any Speed Any RouteNode Types: RED: Battle PURPLE: Night Battle PINK: Air Raid/Battle ORANGE: Enemy Ambush/ASS BLUE: Empty/Choice Light Blue: Emergency Anchorage Repair GREEN: Resource/TP VIOLET: Maelstrom A D B E	Air State AD AP AS AS+ 0 0 0 0
Fleet Notes
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. As many Landing Craft and Amphibious Tanks should be equipped as possible to maximize fuel gain (+3 per craft). Drums works as an inferior substitute (+2 per drum). Using the aforementioned equipment in the fleet is necessary to outweigh the resource cost of the fleet. If lacking enough Amphibious Tanks for SS(V), Drum-capable SS are recommended as a substitute. Normal Resource Nodes Gain Modifiers Equipment / Ship Bonus Gains (per DLC / Ship) 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 Ka-Mi Tank Ka-Tsu Tank Ka-Tsu Tank Kai B Drums 2.0 1.5 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 Notes: If done correctly, this can result in an outstanding fuel gain that surpasses expedition gains. Using "cheap" ships to refuel in the fleet (such as Kamikaze-class and Mutsuki-class) will optimize fuel consumption/farming. Alternatively, it is 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.

☑ All drops (enabled)☒ All drops (disabled, only rare drops)

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			✔️	✔️