diff --git a/data/json/obsoletion_and_migration_0.I/obsolete_overmap_terrain.json b/data/json/obsoletion_and_migration_0.I/obsolete_overmap_terrain.json
index b60ad49f48903..3306a07c0105f 100644
--- a/data/json/obsoletion_and_migration_0.I/obsolete_overmap_terrain.json
+++ b/data/json/obsoletion_and_migration_0.I/obsolete_overmap_terrain.json
@@ -433,5 +433,18 @@
     "type": "overmap_special_migration",
     "id": "s_gunstore_looted",
     "new_id": "s_gun_a"
+  },
+  {
+    "type": "oter_id_migration",
+    "//": "migrated in 0.I",
+    "oter_ids": {
+      "silo_roof": "silo_roof_north",
+      "silo": "silo_north",
+      "silo_1": "silo_1_north",
+      "silo_2": "silo_2_north",
+      "silo_3": "silo_3_north",
+      "silo_4": "silo_4_north",
+      "silo_finale": "silo_finale_north"
+    }
   }
 ]
diff --git a/data/json/overmap/overmap_special/specials.json b/data/json/overmap/overmap_special/specials.json
index c21a6d09917d5..2310e834f3a3d 100644
--- a/data/json/overmap/overmap_special/specials.json
+++ b/data/json/overmap/overmap_special/specials.json
@@ -1002,13 +1002,13 @@
     "type": "overmap_special",
     "id": "Missile Silo",
     "overmaps": [
-      { "point": [ 0, 0, 1 ], "overmap": "silo_roof" },
-      { "point": [ 0, 0, 0 ], "overmap": "silo" },
-      { "point": [ 0, 0, -1 ], "overmap": "silo_1" },
-      { "point": [ 0, 0, -2 ], "overmap": "silo_2" },
-      { "point": [ 0, 0, -3 ], "overmap": "silo_3" },
-      { "point": [ 0, 0, -4 ], "overmap": "silo_4" },
-      { "point": [ 0, 0, -5 ], "overmap": "silo_finale" },
+      { "point": [ 0, 0, 1 ], "overmap": "silo_roof_north" },
+      { "point": [ 0, 0, 0 ], "overmap": "silo_north" },
+      { "point": [ 0, 0, -1 ], "overmap": "silo_1_north" },
+      { "point": [ 0, 0, -2 ], "overmap": "silo_2_north" },
+      { "point": [ 0, 0, -3 ], "overmap": "silo_3_north" },
+      { "point": [ 0, 0, -4 ], "overmap": "silo_4_north" },
+      { "point": [ 0, 0, -5 ], "overmap": "silo_finale_north" },
       { "point": [ 0, -1, 0 ], "overmap": "rural_road_ns" },
       { "point": [ 0, -2, 0 ], "overmap": "rural_road_ns" },
       { "point": [ 0, -3, 0 ], "overmap": "rural_road_ns" },
@@ -1019,7 +1019,7 @@
     "locations": [ "field", "forest_without_trail" ],
     "city_distance": [ 30, -1 ],
     "city_sizes": [ -1, 4 ],
-    "occurrences": [ 20, 20 ],
+    "occurrences": [ 20, 100 ],
     "flags": [ "MILITARY", "OVERMAP_UNIQUE", "MAN_MADE" ]
   },
   {
diff --git a/data/json/overmap/overmap_terrain/overmap_terrain_military.json b/data/json/overmap/overmap_terrain/overmap_terrain_military.json
index 1e555ba15967c..c2056dc8ac185 100644
--- a/data/json/overmap/overmap_terrain/overmap_terrain_military.json
+++ b/data/json/overmap/overmap_terrain/overmap_terrain_military.json
@@ -326,7 +326,7 @@
     "color": "red",
     "vision_levels": "open_land",
     "see_cost": "medium",
-    "flags": [ "NO_ROTATE", "RISK_EXTREME" ]
+    "flags": [ "RISK_EXTREME" ]
   },
   {
     "type": "overmap_terrain",