--- a/addons/core/Scripts/Game/ERR/40_Chat/ERR_NativeCrashStartProbe.c
+++ b/addons/core/Scripts/Game/ERR/40_Chat/ERR_NativeCrashStartProbe.c
@@ -7,6 +7,19 @@
  {
   if (condition) { Print("ERR SMOKE PASS: crash start " + message); return true; }
   Print("ERR SMOKE FAIL: crash start " + message, LogLevel.ERROR); return false;
+ }
+ // GetItems can include magazines installed in a contained pistol. Only exact
+ // reciprocal slots owned by this bag count toward its loose authored allowance.
+ protected static bool DirectBagItem(IEntity item, IEntity bag)
+ {
+  if (!item || !bag) return false;
+  InventoryItemComponent component = InventoryItemComponent.Cast(item.FindComponent(InventoryItemComponent));
+  if (!component) return false;
+  InventoryStorageSlot slot = component.GetParentSlot();
+  if (!slot) return false;
+  BaseInventoryStorageComponent storage = slot.GetStorage();
+  return storage && storage.GetOwner() == bag && storage.GetSlot(slot.GetID()) == slot
+   && slot.GetParentContainer() == storage && slot.GetAttachedEntity() == item;
  }
  static bool Run(ERR_GameMode mode, IEntity player)
  {
@@ -39,10 +52,14 @@
   if (!Check(inventory && items.Count() > 0 && items.Count() <= 128, "finite starting stock is present")) return false;
   foreach (ERR_SiteStock stock : site.Definition.Stock)
   {
+   // Mirror the current shared-map Scenario FieldMap override; all other
+   // finite stock resources remain exactly as authored in the definition.
+   ResourceName expected = stock.Prefab;
+   if (expected == ERR_Supplies.Map()) expected = "{A46500E4A30B653B}Prefabs/Items/Equipment/ERRM_SharedFieldMap.et";
    int count;
    foreach (IEntity item : items)
-    if (item && item.GetPrefabData() && item.GetPrefabData().GetPrefabName() == stock.Prefab) count++;
-   if (!Check(count == stock.Count, "original starting stock count " + stock.Prefab)) return false;
+    if (DirectBagItem(item, site.Container) && item.GetPrefabData() && item.GetPrefabData().GetPrefabName() == expected) count++;
+   if (!Check(count == stock.Count, "current direct salvage stock count " + expected)) return false;
   }
   if (!Check(ERR_ObjectiveText.Description(mode).Contains("salvage"), "initial objective explains the salvage bag")) return false;
   PrintFormat("ERR CRASH START: anchor=%1 wreck=%2 halfSize=%3 clearance=%4; on-foot static aftermath, no crash flight or multiplayer proof", site.Definition.Position, wreck.GetOrigin(), halfSize, height);