diff --git a/Assets/GlobalConfig.asset b/Assets/GlobalConfig.asset
new file mode 100644
index 0000000..c75214d
--- /dev/null
+++ b/Assets/GlobalConfig.asset
@@ -0,0 +1,23 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
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+  m_Script: {fileID: 11500000, guid: 32e788fd2a7bdaf4ab145b64231cb833, type: 3}
+  m_Name: GlobalConfig
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diff --git a/Assets/GlobalConfig.asset.meta b/Assets/GlobalConfig.asset.meta
new file mode 100644
index 0000000..0245198
--- /dev/null
+++ b/Assets/GlobalConfig.asset.meta
@@ -0,0 +1,8 @@
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diff --git a/Assets/Prefabs/LevelManager.prefab b/Assets/Prefabs/LevelManager.prefab
index 71fb6cb..b10ca1a 100644
--- a/Assets/Prefabs/LevelManager.prefab
+++ b/Assets/Prefabs/LevelManager.prefab
@@ -12,6 +12,7 @@ GameObject:
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+  - component: {fileID: 5626804684391367242}
   m_Layer: 0
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   m_TagString: Untagged
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diff --git a/Assets/Scripts/General/GlobalConfig.cs b/Assets/Scripts/General/GlobalConfig.cs
new file mode 100644
index 0000000..4135a7b
--- /dev/null
+++ b/Assets/Scripts/General/GlobalConfig.cs
@@ -0,0 +1,8 @@
+using UnityEngine;
+
+public class GlobalConfig : SingletonBehaviour<GlobalConfig>
+{
+    [SerializeField]
+    private GlobalConfigFile _current;
+    public GlobalConfigFile Current => _current;
+}
diff --git a/Assets/Scripts/General/GlobalConfig.cs.meta b/Assets/Scripts/General/GlobalConfig.cs.meta
new file mode 100644
index 0000000..43d6acb
--- /dev/null
+++ b/Assets/Scripts/General/GlobalConfig.cs.meta
@@ -0,0 +1,11 @@
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diff --git a/Assets/Scripts/General/GlobalConfigFile.cs b/Assets/Scripts/General/GlobalConfigFile.cs
new file mode 100644
index 0000000..94612de
--- /dev/null
+++ b/Assets/Scripts/General/GlobalConfigFile.cs
@@ -0,0 +1,25 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+
+
+[CreateAssetMenu(menuName = project_name + "/Global Config")]
+public class GlobalConfigFile : ScriptableObject
+{
+    public const string project_name = "Gather And Defend";
+    
+    [Header("Enemies")]
+    public float enemyBaseDamage;
+    public float enemyBaseLife;
+    public float enemyBaseRange;
+    public float enemyBaseAttackSpeed;
+
+    public float damageFlashIntensity;
+
+    [Header("resources")]
+    public float harvestDuration;
+    public float harvestAmount;
+    public float harvestRandomDurationMinimum;
+    public float harvestRandomDurationMaximum;
+}
diff --git a/Assets/Scripts/General/GlobalConfigFile.cs.meta b/Assets/Scripts/General/GlobalConfigFile.cs.meta
new file mode 100644
index 0000000..3acea83
--- /dev/null
+++ b/Assets/Scripts/General/GlobalConfigFile.cs.meta
@@ -0,0 +1,11 @@
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diff --git a/Assets/Scripts/LevelManager/LevelManager.cs b/Assets/Scripts/LevelManager/LevelManager.cs
index dc73a2b..fafbd8e 100644
--- a/Assets/Scripts/LevelManager/LevelManager.cs
+++ b/Assets/Scripts/LevelManager/LevelManager.cs
@@ -96,8 +96,9 @@ public class LevelManager : Singleton<LevelManager>
 
     #region [Level management]
 
-    public void UpdateLevel()
+    public void AddAndRemoveObjects()
     {
+        //add and remove
         var toAdd = new List<ILevelObject>(_toAdd);
         toAdd.ForEach(addedObject =>
         {
@@ -113,27 +114,18 @@ public class LevelManager : Singleton<LevelManager>
             _levelObjects.Remove(removedObject);
             removedObject.LevelDestroy();
         });
+    }
+
+    public void UpdateLevel()
+    {
+        AddAndRemoveObjects();
 
         _levelObjects.ForEach(levelObject =>
         {
             levelObject.LevelUpdate();
         });
 
-        toAdd = new List<ILevelObject>(_toAdd);
-        toAdd.ForEach(addedObject =>
-        {
-            _toAdd.Remove(addedObject);
-            _levelObjects.Add(addedObject);
-            addedObject.LevelStart();
-        });
-
-        toRemove = new List<ILevelObject>(_toRemove);
-        toRemove.ForEach(removedObject =>
-        {
-            _toRemove.Remove(removedObject);
-            _levelObjects.Remove(removedObject);
-            removedObject.LevelDestroy();
-        });
+        AddAndRemoveObjects();
     }
 
     public void ClearLevel()
@@ -162,7 +154,9 @@ public class LevelManager : Singleton<LevelManager>
         //create new grid if there is none
         if (!grid)
         {
+            var levelMgrScript = Object.FindObjectOfType<LevelManagerScript>();
             grid = new GameObject("Grid").AddComponent<Grid>();
+            grid.transform.SetParent(levelMgrScript.transform);
         }
         //remove all tilemaps if there is a grid
         else
@@ -199,11 +193,6 @@ public class LevelManager : Singleton<LevelManager>
             ClearLevel();
         }
 
-        foreach (var ob in Database.Instance.ScriptableObjects)
-        {
-            Debug.Log(ob);
-        }
-
         //fetch level from database
         _currentLevel = Database.Instance.ScriptableObjects[levelName] as Level;
 
@@ -290,10 +279,5 @@ public class LevelManager : Singleton<LevelManager>
 
 
     }
-  
-    /// <summary>
-    /// align camera to the rightmost tile of the tilemap
-    /// </summary>
-   
     #endregion
 }
\ No newline at end of file