Add Nanpi pressure scenario

data/campaign/campaign.json

@@ -93,6 +93,11 @@
       "id": "018_northern_pursuit",
       "title": "Northern Pursuit",
       "path": "res://data/scenarios/018_northern_pursuit.json"
+    },
+    {
+      "id": "019_nanpi_pressure",
+      "title": "Nanpi Pressure",
+      "path": "res://data/scenarios/019_nanpi_pressure.json"
     }
   ]
 }