Add Maicheng pursuit scenario

data/campaign/campaign.json

@@ -233,6 +233,11 @@
       "id": "046_jingzhou_supply_line",
       "title": "Jingzhou Supply Line",
       "path": "res://data/scenarios/046_jingzhou_supply_line.json"
+    },
+    {
+      "id": "047_maicheng_pursuit",
+      "title": "Maicheng Pursuit",
+      "path": "res://data/scenarios/047_maicheng_pursuit.json"
     }
   ]
 }