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World 7/7-4

< World 7
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World 7-4: 昭南本土航路 Shounan Mainland Route

 

 

Strategy Name
ヒ船団海上護衛作戦 (Hi Convoy Maritime Escort Operation)
Difficulty
☆☆☆☆☆☆☆☆☆
Item
Strategy Content
南方から本土方面に重要資源を輸送するヒ船団。同船団を敵潜及び敵機動部隊から護る海上護衛作戦を発動する！抜錨せよ！
The Hi Convoy transports vital resources from the south to the mainland. To protect the fleet from enemy submarines and task forces, we're launching a maritime escort operation! Weigh anchor!
Torpedo Squadron
Fleet Torpedo Squadron: 1CL, 4DD, 1CLT
Route C E J L P
Other Notes LBAS Node P: Range = 2
4 DDs are needed to secure C - E route.
AP AS AS+
0 0 0
Heavy fleet
Fleet 0-1BBV, 1CVL, 1CA/CL, 2-3DD, 1-2DE
Route A B E J L P
Other Notes LBAS Node P: Range = 2
AP AS AS+
116 260 520
7-4 Farming
Fleet 1-6SS(V)
Route C D F J K M O
Other Notes LoS ≥ 32 (Cn3)
AP AS AS+
0 0 0

Map Unlocking & Progression

7-4 is unlocked after clearing 7-3 HP bar once.

To clear the map, the boss's flagship must be sunk 4 times.

  • 1 LBAS is available on this map.
    • The LBAS is only available once B175 is cleared.
    • See the unlocking steps here: LBAS Unlocking.

Stage Guide

7-4 Branching Rules
Nodes Rules
1
A
  • Meet ALL of the following to go to A
    • Meet one of the following
      • DD + DE ≥ 3
      • DE ≥ 2
      • LHA ≥ 1, DE ≥ 2 and DD + DE ≥ 3
    • (F)BB + CV(B) = 0
    • BBV + CVL + Akitsumaru ≤ 2
    • CA(V) ≤ 1
    • CL + CT + CLT ≤ 1
    • SS(V) = 0
  • Otherwise, C
C
C
D
  • Meet ANY of the following to go to D
    • SS(V) ≥ 1
    • (F)BB + CV(B) ≥ 1
    • BBV ≥ 3
    • CVL + Akitsumaru ≥ 3
  • Meet ANY of the following to go to E
    • DD + DE ≥ 4
    • CT ≥ 1 and DD + DE ≥ 3
    • DE ≥ 3
    • Fast+ fleet and DD ≥ 2
  • Otherwise, D
E
E
G
  • To route to G fleet must have
  • Otherwise, J
J
F
J
  • Active Branching
H
G
I
  • Fail LoS Check to go to I
  • Otherwise, L
L
J
K
  • Go to K if LoS < 33 (Cn4)
  • Random if 33 ≤ LoS < 37 (Cn4)
  • If LoS ≥ 37 (Cn4), the fleet will go as the following
    • Go to P if CT ≥ 1, DE ≥ 3 AND Taiyou-class 
       
              + CT + DD + DE = 5 (5 ships only, no more no less)
    • Meet ALL of the following to go to L
      • SS(V) + (F)BB + CV(B) = 0
      • BBV ≤ 2
      • CVL + Akitsumaru ≤ 2
      • Meet one of the following
        • LHA ≥ 1, DE ≥ 2 and DD + DE ≥ 3
        • DD + DE ≥ 4
        • CT ≥ 1 and DD + DE ≥ 3
        • DE ≥ 3
        • Fast+ fleet and DD ≥ 2
    • Otherwise, meet ANY of the following to go to K
      • BBV + CVL + Akitsumaru ≥ 3
      • CA(V) ≥ 2
      • CL + CLT + CT ≥ 2
    • Go to L if DD + DE ≥ 3 or DE ≥ 2
    • Finally, go to K if the fleet doesn't meet any of the above conditions.
P
L
K
P
  • All current composition routes to M. Nothing routes to P
M
M
N
  • Go to N if LoS < 45 (Cn4)
  • Random N/O if 45 ≤ LoS < 47 (Cn4)
  • Meet ANY of the following to go to O AND LoS ≥ 47 (Cn4)
    • SS(V) + BB + CV(B) ≥ 1
    • FBB ≥ 2
    • BBV ≥ 2
    • CVL + Akitsumaru ≥ 2
    • DD + DE ≤ 1
  • Otherwise, P
O
P


Ship Bonuses

DISCLAIMER: This information is based on user-submitted data and is subject to revisions as more data is gathered. Any version of the ship receives the bonus regardless of remodel.

Ships Damage Evasion Accuracy
Nodes
J, L 		Node
P 		Map-wide Map-wide
      ?? ?? ?? ??
    1.15x 1.22 ~ 1.23x ?? ??
  - 1.18x 1.18x
Coastal Defense Ships (DE) 1.25x 1.33x 1.35x 1.25?x

Historical Routing

Ships with special routing on the map:

CVL
     
LHA
 

Tips

Be advised: The Developers have mentioned that the composition and map will change over time, this may even include the resource node possibly. So take advantage of the map while it is possible.

Regarding Land-Based Air Squadrons

  • 1 LBAS is available to sortie.
    • It is highly recommended to use the LBAS to help simplify the battle on the boss node for this map.
    • It is recommended to bring Land-Based Attackers, land-based ASW bombers 
             , and fighters, to increase effectiveness on the Boss.
    • The LBAS range needed to reach the boss is 2, other nodes' range being equal or higher.
  • This map is also the best location to train all land-based planes to max-proficiency ❱❱ . Bring only planes with a range of at least 3 (7 for furthest nodes) as they will reach submarine Nodes on B, C, J, and K.

Recommended Fleets

This guide will go over the events of this map in the recommended sequential order upon unlocking quest B175.

Reach Node O

Quest B175 requires to reach node O:

  • 1-6SS(V)
  • Route = C D F J K M O
    • The LoS needed is about 32 (Cn3).
    • Several   Seaplanes or   Submarine Radars might be needed to have enough LoS to route from M to O.
    • Submarines will face little to no threat along the way.

Sink the Hi Convoy Princess P

In this part, it is recommended to use the LBAS to clear the map more easily, as this will give the necessary edge needed to fight against the boss. While the boss is not strong, she is very tanky and is escorted by a fleet that may be troublesome to wipe.

  • 0-1BBV, 1CVL, 1CA/CL, 3-4DD/DE
  • Route = A B E J L P
  • LBAS Node P: Range = 2
    • Allows bringing a strong fleet to the boss.
    • Fleet will go through 2 Submarine Nodes, 1 Air Node, and 2 Surface/Submarine Nodes.
    • Node J can especially be problematic due to it featuring 3 Submarine So-Class Flagship , but will become even more dangerous on Last Dance with the enemy fleet in line ahead formation.
  • It is recommended to bring:
    • Ships that can effectively OASW to survive the submarines.
    • An Ise-class Kai Ni 
              and a CVE to help clearing while having AS.
    • An AACI for node E as well as the boss.
    • At least 1 TCI capable DD.
    • If possible, ships that can take on multiple roles.
  • The boss does not have a lot of planes, bringing enough airpower and AACI can effectively deplane her, rendering her defenseless.
  • LBAS should use a combination of Fighter, Bombers, and ASW Bombers to effectively help with clearing the boss.
  • Last Dance comp will buff the DDs and CL in her fleet along with giving her additional airpower.
    • Bring additional airpower as a countermeasure to effectively beat her.

"Torpedo Squadron": 1CL (flagship), 4DD, 1CLT

  • Route = C E J L P
  • LBAS Node P: Range = 2
    • This solution requires more advanced gears, and might be out of reach of new players. It is required to bring an   FCF capable CL as flagship, preferably an Agano-class Kai+, equipped with:
    • It also requires at least 5 OASW along with married DDs to allow them to do TCI while enabling their OASW with sonar alone.
    • If you meet all of the above requirements, this is the cheapest (for resource) and the best comp for farming boss node, having the highest pass rate thanks to the usage of ETSCF in case a ship got heavily damaged.
    • The Evacuation mechanic of the ETSCF should be used if needed, as long as the routing is maintained.
      • C - E route is secured if you have 4 DDs in the fleet.
      • The boss routing is secured as long as the fleet LoS is above 37 Cn4.
    • Do note that the Night Zuiun will likely be shot down completely due to fighting under AI and the presence of CL Tsu-Class .

This fleet is not recommended for S-rank the boss node as it is very weak and will struggle to kill the boss, but can be useful if only an A rank is required (DEs still drop in A rank, albeit less rate) while leveling DEs on the way.

  • 1CT, 1DD / 1 Taiyou-class CVE 
     
         , 3DE
  • Route = A B E J P
  • LBAS Node P: Range = 2
    • This map has a special routing for Taiyou-class CVE 
       
             , who can be brought when using light fleet to get more firepower. It is a cheap but weak fleet.
    • Will go through, 1 Submarine Node, 1 Air Node, and 1 Surface/Submarine Node.
    • Dependent on the only DD or CVE to score the kill against the boss.
    • DEs will take on OASW.
    • The DD must do a TCI, CVE must do a night carrier cut in attack in order to sink the boss.
    • Node E and P may be troublesome due to a lack of air defense.
    • LBAS should focus on removing the surface ships to make scoring the kill against the Boss more likely.
    • The DD or CVE needs to avoid taking too much damage to effectively kill the boss.

See: Formations. It is advised to use Line Abreast on most of the map:

  • Nodes B C G J K L
Diamond is advised on:
  • Nodes E M
For Boss P:
  • Depending on how the LBAS is setuped:
    • Line ahead is recommended if the LBAS can effectively kill the enemy SS.
    • Echelon or Double Line is preferred if the LBAS is not set to fight SS.

Resources and LBAS Farming

Doing this farming will bring a lot of "losses", which can impact overall win rate and thus "event eligibility".

  • This issue is fully mitigated by using the ASW seaplane strat.

It is possible to farm both fuel   and bauxite   by reaching node O.

Resources earnings    
Base 40 20
Maximum 200 120


Special Resource Nodes Gain Modifiers
Type 1
Equipment / Ship Bonus Gains (per DLC / Ship)[1]
Type Name 2-4 A  
3-2 I  
3-4 K/O  /  		2-5 5-4 I
  		5-5 E
  		7-4 O
M
 		 N
  		   
  A Toku Daihatsu Landing Craft 
Daihatsu Landing Craft 
Armed Daihatsu 
DLC + T89 Tank 
DLC + Panzer II 
Soukoutei 
Toku DLC + Ho-Ni Tank  		~35% of +1
if 4+ used[2] 		5.0 10.0 15.0 10.0 7.0 10.0
  Ka-Mi Tank 
Ka-Tsu Tank 
Ka-Tsu Tank Kai 
  B Drums  0.0 10.0 5.0 10.0 15.0 8.0 6.0
  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
Ship Souya 
 
  		0.0 0.0 0.0 0.0 0.0 22.0 16.0
AO 15.0 10.0
BBV 10.0 10.0
LHA 8.0 7.0
CVL 7.0 4.0
AV 6.0 5.0
AS 5.0 5.0
Other types 0.0 0.0
Resource Cap 2 150 150 180 180 200 120
Random Resource Increments 0/1 0 0 0 0 0 0
Notes:
  1. ↑ If the total value has a decimal, only the rounded-down value is applied.
  2. ↑ Exact values still under investigation

Sources: [1] [2] [3] [4]

  • 1-6SS(V)
  • Route = C D F J K M O
    • LoS required: ≥ 32 (Cn3)
  • A maximum of   Amphibious Vehicles should be used as they provide the best earnings for submarines.
    •   Drum Canister-capable SS are recommended as a substitute, increasing the resource gains without requiring more Amphibious Vehicles.
    • The   gain cap being relatively low, it will be capped by using only 10   or 4   + 8  .
    • It is not possible to reach the   gain cap with a submarine only fleet.
  • To meet the LoS requirement, using   Seaplanes and/or   Submarine Radars may be required.
  • While this map has little to no threat against a full submarine fleet, J will have rare instances where destroyers may pop up in the composition that will damage the SS. Please be aware of this while farming this map.
    • Refreshing the game each time this comp shows up in the fleet preview will fully prevent this issue.
    • Do not consider farming during Boss Last Dance, as J will be locked on this 2 Destroyer composition.
  • Running this comp will bring 2 losses per run on the submarine nodes C K, which can be debilitating relative to event win rate requirements.
    • Sending a single  Recon ASW Seaplane Recon LBAS on each submarine node will mitigate this issue cheaply.

It is possible to farm for LBAS Plane Proficiency ❱❱ by sending the LBAS on a submarine node like J or K.

  • Just set-up an LBAS with any planes, according the final range is enough to reach J or K (3 range each).
    • Sending a surface-focused LBAS on J can assure a safer path. Such runs consume little to no resources on the LBAS.

Enemy Compositions

 
7-4 A
# Empty Node
A 気のせいだった。
Must be my imagination.
# Empty Node
7-4 B: 深海潜水艦隊 哨戒集団 B群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
B Echelon
Line Abreast
      
 0/0
0/0
Echelon
Line Abreast
      
 0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 C: 深海潜水艦隊 哨戒集団 C群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
C Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 D: 深海任務部隊 艦載機群 (PoiDB)
# Formation Air Defense Node AD/AP
AS/AS+
D Diamond
             
44/88
197/393
Diamond
              
72/143
321/642
Diamond
              
72/143
321/642
Diamond
               
108/215
482/963
Diamond
               
108/215
482/963
Diamond
                
116/231
519/1038
# Formation Air Defense Node AD/AP
AS/AS+
7-4 E: 深海任務部隊 艦載機群 (PoiDB)
# Formation Air Defense Node AD/AP
AS/AS+
E Diamond
             
39/77
173/345
Diamond
             
44/88
197/393
Diamond
             
44/88
197/393
Diamond
              
72/143
321/642
Diamond
              
72/143
321/642
Diamond
               
80/160
359/717
# Formation Air Defense Node AD/AP
AS/AS+
7-4 F (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 G: 深海潜水艦隊 哨戒集団 A群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
G Echelon
      
 0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 H: 深海任務部隊 空母機動部隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
H Diamond
              
72/143
321/642
Diamond
               
80/160
359/717
Diamond
               
108/215
482/963
Diamond
                
116/231
519/1038
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 I
# Empty Node
I 敵影を見ず。
No enemy spotted.
# Empty Node
7-4 J: 深海艦隊 特殊任務部隊 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
J Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Line Ahead
            
0/0
0/0
Line Ahead
            
0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 K: 深海潜水艦隊 哨戒集団 旗艦群 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
K Echelon
Line Abreast
      
 0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
Echelon
Line Abreast 		0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 L: 深海任務部隊 船団攻撃集団 (PoiDB)
# Formation Normal Battle Node AD/AP
AS/AS+
L Echelon 0/0
0/0
Line Ahead
Double Line 		0/0
0/0
Line Ahead
Double Line
Echelon 		0/0
0/0
# Formation Normal Battle Node AD/AP
AS/AS+
7-4 M: 深海任務部隊 艦載機群 (PoiDB)
# Formation Air Defense Node AD/AP
AS/AS+
M Diamond
                
109/217
488/975
Diamond
                
104/207
464/927
Diamond
                
116/231
518/1035
Diamond
                
110/220
494/987
Diamond
                
125/249
558/1116
Diamond
                
124/247
554/1107
# Formation Air Defense Node AD/AP
AS/AS+
7-4 N
# Empty Node
N 敵影を見ず。
No enemy spotted.
# Empty Node
7-4 O
# Resource Node
O   40 (cap 200)
O   20 (cap 120)
# Resource Node
7-4 P: 深海 ヒ船団棲姫船団 (PoiDB)
# Formation Boss Battle Node AD/AP
AS/AS+
P Diamond
            
32/63
140/279
Diamond
            
33/65
146/291
Diamond
            
32/63
140/279
Diamond
            
33/65
146/291
Diamond
            
54/107
240/480
Diamond
(Final)
            
53/105
236/471
# Formation Boss Battle Node AD/AP
AS/AS+

Ship Drops

This map currently has "limited-time" drops, see Drop List for more info.
  • The below table contains limited-time drop data and may not be up to date.
Ship drops
Type Ship? H J L P
DE Matsuwa ✔️
DE Sado ✔️ ✔️
DE Tsushima ✔️
DE Hirato ✔️
DE Mikura ✔️
DE Hiburi ✔️
DE Daitou ✔️
DD Hatakaze ✔️ ✔️ ✔️
DD Amatsukaze ✔️
AO Kamoi ✔️
DD Urakaze ✔️
CL Kitakami ✔️
CL Ooi ✔️ ✔️ ✔️
CL Nagara ✔️ ✔️ ✔️ ✔️
CL Sendai ✔️ ✔️ ✔️ ✔️
CA Kinugasa ✔️
CA Myoukou ✔️
CA Takao ✔️
CA Atago ✔️
CA Mogami ✔️ ✔️ ✔️ ✔️
CA Suzuya ✔️
CA Kumano ✔️ ✔️
CA Tone ✔️ ✔️
CA Chikuma ✔️ ✔️ ✔️ ✔️
CVL Shouhou ✔️ ✔️ ✔️
CVL Zuihou ✔️
CVL Hiyou ✔️ ✔️ ✔️ ✔️
CVL Junyou ✔️ ✔️
FBB Kongou ✔️ ✔️
FBB Hiei ✔️
FBB Haruna ✔️
FBB Kirishima ✔️
BB Ise ✔️
BB Hyuuga ✔️
CV Zuikaku ✔️
DD Mutsuki ✔️
DD Kisaragi ✔️
DD Satsuki ✔️
DD Fumizuki ✔️
DD Kikuzuki ✔️
DD Mikazuki ✔️
DD Fubuki ✔️ ✔️ ✔️ ✔️
DD Shirayuki ✔️ ✔️ ✔️
DD Hatsuyuki ✔️ ✔️ ✔️
DD Miyuki ✔️ ✔️ ✔️ ✔️
DD Murakumo ✔️ ✔️ ✔️ ✔️
DD Isonami ✔️ ✔️ ✔️ ✔️
DD Ayanami ✔️ ✔️ ✔️ ✔️
DD Shikinami ✔️ ✔️ ✔️ ✔️
DD Oboro ✔️
DD Akebono ✔️
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 Suzukaze ✔️
DD Asashio ✔️
DD Ooshio ✔️
DD Arashio ✔️
DD Arare ✔️
DD Kasumi ✔️
DD Kagerou ✔️
DD Shiranui ✔️
DD Kuroshio ✔️
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 ✔️ ✔️ ✔️


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