Add southern fleet scenario

data/campaign/campaign.json

@@ -308,6 +308,11 @@
       "id": "061_nanhai_route",
       "title": "Nanhai Route",
       "path": "res://data/scenarios/061_nanhai_route.json"
+    },
+    {
+      "id": "062_southern_fleet",
+      "title": "Southern Fleet",
+      "path": "res://data/scenarios/062_southern_fleet.json"
     }
   ]
 }