Changes

| list1      =[[World 1#1-1|1-1: Sea in front of Naval Base]] {{·}} [[World 1#1-2|1-2: Nansei Islands Offshore]] {{·}} [[World 1#1-3|1-3: Coastal Refinery Zone]] {{·}} [[World 1#1-4|1-4: Nansei Islands Defense Line]] {{·}} [[World 1#1-5|1-5: Sea around Naval Base]] {{·}} [[World 1#1-6|1-6: Sea route near Naval Base]]

| list1      =[[World 1#1-1|1-1: Sea in front of Naval Base]] {{·}} [[World 1#1-2|1-2: Nansei Islands Offshore]] {{·}} [[World 1#1-3|1-3: Coastal Refinery Zone]] {{·}} [[World 1#1-4|1-4: Nansei Islands Defense Line]] {{·}} [[World 1#1-5|1-5: Sea around Naval Base]] {{·}} [[World 1#1-6|1-6: Sea route near Naval Base]]

| group2    =[[File:IcoArea2.png|South-west Islands Sea|link=World 2]]

| group2    =[[File:IcoArea2.png|South-west Islands Sea|link=World 2]]

| list2      =[[World 2#2-1|2-1: Cam Ranh Peninsula]] {{·}} [[World 2#2-2|2-2: Bashi Island Offshore]] {{·}} [[World 2#2-3|2-3: Eastern Orel Bay]] {{·}} [[World 2#2-4|2-4: Okinoshima Island Sea]] {{·}} [[World 2#2-5|2-5: Combat Patrol Off Okinoshima Island Offshore]]

| list2      =[[World 2#2-1|2-1: Nansei Islands Coastal Waters]] {{·}} [[World 2#2-2|2-2: Bashi Island Offshore]] {{·}} [[World 2#2-3|2-3: Eastern Orel Bay]] {{·}} [[World 2#2-4|2-4: Okinoshima Island Sea]] {{·}} [[World 2#2-5|2-5: Combat Patrol Off Okinoshima Island Offshore]]

| group3    =[[File:IcoArea3.png|Northern Sea|link=World 3]]

| group3    =[[File:IcoArea3.png|Northern Sea|link=World 3]]

| list3      =[[World 3#3-1|3-1: Moray Sea]] {{·}} [[World 3#3-2|3-2: Kis Island]] {{·}} [[World 3#3-3|3-3: Forefront of Alfonsinoes]] {{·}} [[World 3#3-4|3-4: Throughout Northern Sea]] {{·}} [[World 3#3-5|3-5: Northern Aleutian Sea]]

| list3      =[[World 3#3-1|3-1: Moray Sea]] {{·}} [[World 3#3-2|3-2: Kis Island]] {{·}} [[World 3#3-3|3-3: Forefront of Alfonsinoes]] {{·}} [[World 3#3-4|3-4: Throughout Northern Sea]] {{·}} [[World 3#3-5|3-5: Northern Aleutian Sea]]