World 1/1-3

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!

1-3 is unlocked after clearing 1-2.

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

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
Start	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
A	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)
F	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

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

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

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
	A	Ka-Mi Tank Ka-Tsu Tank Ka-Tsu Tank Kai	3.0	2.0	0.0
	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: ↑ If the total value has a decimal, only the rounded-down value is applied.

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

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).

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 ?
#	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+

This map currently has "limited-time" drops that don't appear in the table below, see Drop List for more info.