Changes

|{{lang|ja|「潜水艦隊」出撃せよ！}}<br>''Deploy the "Submarine Fleet"!''

|{{lang|ja|「潜水艦隊」出撃せよ！}}<br>''Deploy the "Submarine Fleet"!''

|''Repeat sorties into the Central Sea Region Patrol Line with a fleet mainly consisting submarines and reduce the enemy forces!''

|''Repeat sorties into the Central Sea Region Patrol Line with a fleet mainly consisting submarines and reduce the enemy forces!''

*Fleet Requirement: None (but due to branching rules, at least 3+ [[Ship Class#Submarine .28SS.29|SS]]/[[Ship_Class#Submarine_Aircraft_Carrier_.28SSV.29]] required)

*Fleet Requirement: None (but due to branching rules, at least 3+ [[Ship Class#Submarine .28SS.29|SS]]/[[Ship_Class#Submarine_Aircraft_Carrier_.28SSV.29|SSV]] required)

*Completion Condition: Obtain 3 S-rank victories at the boss node of [[World 6#6-1|World 6-1]].

*Completion Condition: Obtain 3 S-rank victories at the boss node of [[World 6#6-1|World 6-1]].

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