Host migration or so?

I would like to add host migration in my game, but it needs to have it that the level is NOT reset. Also I have read one that every answer I saw referred to. Though posting a chunk of code would be really useful I will provide my network code below.

using UnityEngine; using System.Collections; using System.Collections.Generic;

public class NetworkMenu : MonoBehaviour {

 public string CurrentMenu = "";
 
 public string servername = "Server Name";
 
 public int Port = 24444;
 
 public List<MPPlayer> PlayerList = new List<MPPlayer>();
 
 public GameObject Spawnpoint;
 
 public GameObject Spawnedpl;
 
 public bool matchstarted;
 
 public bool Connected;
 
 public string _Playername;
 
 public static NetworkMenu ins;
 
 public GameObject networkScoreManager;
 
 public ScoreManager score;
 
 public bool _start;
 
 public GUIStyle text_style;
 
 
 public GUIStyle gui_Style;
 
 void Awake(){
     ins = this;
     NextMenu("Main");
     networkScoreManager = GameObject.FindGameObjectWithTag("ScoreManager");
     score = networkScoreManager.GetComponent<ScoreManager>();
     _Playername = PlayerPrefs.GetString("PlayerName");
 }
 
 
 
 void Start(){
     Set_GUI_Style();
 }
 
 private void Set_GUI_Style(){
     gui_Style.alignment = TextAnchor.MiddleCenter;
     text_style.alignment = TextAnchor.MiddleCenter;
 }
 
 void OnGUI(){
     if(CurrentMenu == "Main"){
     GUIMain();
     }
     if(CurrentMenu == "Start"){
     GUIStart();
     }
     if(CurrentMenu == "Browser"){
     GUIBrowser();
     }
     Lobby();
 }
 
 
 //GUI
 private void GUIMain(){
 if(!Network.isClient && !Network.isServer){
         
 if(GUI.Button(new Rect(10,10,200,25),"Browser",gui_Style)){
     NextMenu("Browser");
     MasterServer.RequestHostList("354545Battle");
 }
 if(GUI.Button(new Rect(10,40,200,25),"Host",gui_Style)){
     NextMenu("Start");
 }
 _Playername = GUI.TextArea(new Rect(10,70,200,25),_Playername,15,text_style);
 if(GUI.Button(new Rect(10,100,200,25),"Save Name",gui_Style)){
 PlayerPrefs.SetString("PlayerName", _Playername);            
 }
 if(GUI.Button(new Rect(10,130,200,25),"Quit",gui_Style)){
     Application.Quit();
 }
 }
 }
 
 private void GUIStart(){
 //Starts The server
 if(!Network.isClient && !Network.isServer){
 if(GUI.Button(new Rect(10,10,200,25),"Start Server",gui_Style)){
 StartServer();
 Debug.Log("Started Server with name" + servername);
 }
 servername = GUI.TextArea(new Rect(10,40,200,25),servername,20,text_style);
 if(GUI.Button(new Rect(10,70,200,25),"Back",gui_Style)){
 NextMenu("Main");            
 }
 }
 }
 
 void Update(){
 //Allows for starting
 if(Network.isServer){
 if(Network.connections.Length >= 0 && !matchstarted){
 //Server_SendSettings();
 //Spawn();
 _start = true;
 }
 }
 }
 
 public void Server_SendSettings(){
 networkView.RPC("Player_LoadSettings",RPCMode.All,true);
 networkScoreManager.networkView.RPC("FoundAllPlayers",RPCMode.All,true,Network.connections.Length + 1);
 Debug.Log("Sending Match Settings");    
 }
 
 public void Lobby(){
 //Starts The match
 if(Network.isServer && !matchstarted){
 if(_start){
 if(GUI.Button(new Rect(10,10,200,25),"Start Match",gui_Style)){
 Server_SendSettings();
 Network.maxConnections = 0;
 }
 if(GUI.Button(new Rect(10,40,200,25),"End Match",gui_Style)){
 Network.Disconnect();
 Application.LoadLevel(0);
 }
 }        
 }
 }    
 
 private void GUIBrowser(){
 if(!Network.isClient && !Network.isServer){
 if(GUI.Button(new Rect(10,10,200,25),"Back",gui_Style)){
     NextMenu("Main");
 }
 if(GUI.Button(new Rect(10,40,200,25),"Refresh",gui_Style)){
     MasterServer.RequestHostList("354545Battle");
 }
 GUILayout.BeginArea(new Rect(Screen.width / 2, 0,Screen.width / 2,Screen.height),"Server List","box");
 GUILayout.Space(20);
 foreach(HostData hd in MasterServer.PollHostList()){
 GUILayout.BeginHorizontal();
 GUILayout.Label(hd.gameName);
 if(hd.connectedPlayers < hd.playerLimit){
 GUILayout.Label(hd.connectedPlayers + "/" + hd.playerLimit);
 }
 else{
 GUILayout.Label("Match is full or has started");                
 }
 if(GUILayout.Button("Connect")){
 Network.Connect(hd);
 }
 GUILayout.EndHorizontal();
 }
 GUILayout.EndArea();
 }
 }
 
 void OnPlayerConnected(NetworkPlayer player){
 }
 
 void OnConnectedToServer(){
 Debug.Log("Connecting");
 networkView.RPC("PlayerConnectedToServer",RPCMode.Others,_Playername);
 if(matchstarted){
 Network.Disconnect();
 Application.LoadLevel(0);
 }
 Debug.Log("Done");
 }
 
 public void PlayerLeave(GameObject player){
     Network.Destroy(player);
     networkScoreManager.networkView.RPC("PlayerLeft",RPCMode.All,_Playername);
 }
 
 public void HostQuit(GameObject host){
     networkView.RPC("KickAllPlayers",RPCMode.All);
 }
 
 void OnServerInitialized(){
     
 }
 
 
 public void StartServer(){
     Network.InitializeServer(15,Port,false);
 //    Network.InitializeSecurity();
     MasterServer.RegisterHost("354545Battle",servername,"Hosted Game");
 }
 
 public void Spawn(){
 GameObject PlayerSpawned = Network.Instantiate(Spawnedpl,Spawnpoint.transform.position,Quaternion.identity,1) as GameObject;
 PlayerSpawned.GetComponent<NetworkManager>()._name = _Playername;
 }
 
 //Next Menu Void
 public void NextMenu(string nxt){
     CurrentMenu = nxt;
 }
 
 void OnDisconnectedFromServer(){
     Application.LoadLevel(0);
 }
 
 void OnPlayerDisconnected(NetworkPlayer id){
     Network.DestroyPlayerObjects(id);
     Network.RemoveRPCs(id);
 }
 
 
 
 //RPCs
 
 [RPC]
 void Player_Joined(){
     
 }
 
 [RPC]
 void Player_LoadSettings(bool _matchstarted){
 matchstarted = _matchstarted;
 Debug.Log("Got Settings!");
 Spawn();
 }
 

}

public class MPPlayer{ public string PlayerName; public NetworkPlayer PlayerNetwork; }