diff --git a/AirBomber/AirBomber/MapWithSetAirplanesGeneric.cs b/AirBomber/AirBomber/MapWithSetAirplanesGeneric.cs
index 6c98db3..b05f916 100644
--- a/AirBomber/AirBomber/MapWithSetAirplanesGeneric.cs
+++ b/AirBomber/AirBomber/MapWithSetAirplanesGeneric.cs
@@ -180,6 +180,11 @@ namespace AirBomber
             }
         }
 
+        public void Clear()
+        {
+            SetAirplanes.Clear();
+        }
+
         /// <summary>
         /// Получение данных в виде строки
         /// </summary>
diff --git a/AirBomber/AirBomber/MapsCollection.cs b/AirBomber/AirBomber/MapsCollection.cs
index 1959822..a789dee 100644
--- a/AirBomber/AirBomber/MapsCollection.cs
+++ b/AirBomber/AirBomber/MapsCollection.cs
@@ -142,7 +142,14 @@ namespace AirBomber
                     map = new WallMap();
                     break;
             }
-            _mapStorages[nameMapStorage] = new(_pictureWidth, _pictureHeight, map);
+            if (_mapStorages.ContainsKey(nameMapStorage))
+            {
+                _mapStorages[nameMapStorage].Clear();
+            }
+            else
+            {
+                _mapStorages[nameMapStorage] = new(_pictureWidth, _pictureHeight, map);
+            }
             _mapStorages[nameMapStorage].LoadData(lineData.Split(separatorData, StringSplitOptions.RemoveEmptyEntries));
             return true;
         }
@@ -158,33 +165,30 @@ namespace AirBomber
             {
                 return false;
             }
-            List<string> strs = new List<string>();
             using (StreamReader fs = new(filename))
             {
+                var formatData = fs.ReadLine() ?? string.Empty;
+                bool isNotMapsCollection = !formatData.Contains("MapsCollection");
+                if (formatData.Contains("Map") && isNotMapsCollection)
+                {
+                    var nameMap = fs.ReadLine().Replace("Name: ", "");
+                    var elem = fs.ReadLine().Split(separatorDict);
+                    return LoadMap(nameMap, elem[0], elem[1]);
+                }
+                if (isNotMapsCollection)
+                {
+                    //если нет такой записи, то это не те данные
+                    return false;
+                }
+                //очищаем записи
+                _mapStorages.Clear();
                 while (!fs.EndOfStream)
                 {
-                    strs.Add(fs.ReadLine());
+                    var elem = fs.ReadLine().Split(separatorDict);
+                    LoadMap(elem[0], elem[1], elem[2]);
                 }
+                return true;
             }
-            bool isNotMapsCollection = !strs[0].Contains("MapsCollection");
-            if (strs[0].Contains("Map") && isNotMapsCollection)
-            {
-                var elem = strs[2].Split(separatorDict);
-                return LoadMap(strs[1].Replace("Name: ", ""), elem[0], elem[1]);
-            }
-            else if (isNotMapsCollection)
-            {
-                //если нет такой записи, то это не те данные
-                return false;
-            }
-            //очищаем записи
-            _mapStorages.Clear();
-            for (int i = 1; i < strs.Count; ++i)
-            {
-                var elem = strs[i].Split(separatorDict);
-                LoadMap(elem[0], elem[1], elem[2]);
-            }
-            return true;
         }
     }
 }
diff --git a/AirBomber/AirBomber/SetAirplanesGeneric.cs b/AirBomber/AirBomber/SetAirplanesGeneric.cs
index fffa285..b044dcc 100644
--- a/AirBomber/AirBomber/SetAirplanesGeneric.cs
+++ b/AirBomber/AirBomber/SetAirplanesGeneric.cs
@@ -109,5 +109,10 @@ namespace AirBomber
             }
 
         }
+
+        public void Clear()
+        {
+            _places.Clear();
+        }
     }
 }