Argument out of Range

I'm trying to build a multiplayer FPS for my class. I'm using this tutorial: http://www.youtube.com/watch?v=lFI4FGWL-fs

I got all the way to the end, I believe I've followed it to the nose, but when I go to start my match, it takes me back to the main menu and gives me the error "ArgumentOutOfRangeException: Argument is out of range. Parameter name: Index" It's referencing line 26 of my code which is "CurrentMap = MapList[0];"

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class MultiplayerManager : MonoBehaviour 
 {
     public static MultiplayerManager instance;
     
     public string PlayerName;
     
     private string MatchName = "";
     private string MatchPassword = "";
     private int MatchMaxUsers = 32;
     
     public List<MPPlayer> PlayerList = new List<MPPlayer>();
     public List<MapSetting> MapList = new List<MapSetting>();
     
     public MapSetting CurrentMap = null;
     public int oldprefix;
     public bool IsMatchStarted = false;
     
     void Start()
     {
         instance = this;
         PlayerName = PlayerPrefs.GetString("PlayerName");
         CurrentMap = MapList[0];
     }
     
     void FixedUpdate()
     {
         instance = this;
     }
     
     public void StartServer(string servername, string serverpassword, int maxusers)
     {
         MatchName = servername;
         MatchPassword = serverpassword;
         MatchMaxUsers = maxusers;
         Network.InitializeServer(MatchMaxUsers, 2550, false);
         MasterServer.RegisterHost("Death Match", MatchName, "");
         //Network.InitializeSecurity();
     }
     
     void OnServerInitialized()
     {
         Server_PlayerJoinRequest(PlayerName, Network.player);
     }
     
     void OnConnectedToServer()
     {
         networkView.RPC("Server_PlayerJoinRequest", RPCMode.Server, PlayerName, Network.player);
     }
     
     void OnPlayerDisconnected(NetworkPlayer id)
     {
         networkView.RPC("Client_RemovePlayer", RPCMode.All, id);
     }
     
     void OnPlayerConnected(NetworkPlayer player)
     {
         foreach(MPPlayer pl in PlayerList)
         {
             networkView.RPC("Client_AddPlayerToList", player, pl.PlayerName, pl.PlayerNetwork);
         }
             networkView.RPC("Client_GetMultiplayerMatchSettings", player, CurrentMap.MapName, "", "");
     }
         
     [RPC]
     void Server_PlayerJoinRequest(string playername, NetworkPlayer view)
     {
         networkView.RPC("Client_AddPlayerToList", RPCMode.All, playername, view);
     }
     
     [RPC]
     void Client_AddPlayerToList(string playername, NetworkPlayer view)
     {
         MPPlayer tempplayer = new MPPlayer();
         tempplayer.PlayerName = playername;
         tempplayer.PlayerNetwork = view;
         PlayerList.Add(tempplayer);
     }
     
     [RPC]
     void Client_RemovePlayer(NetworkPlayer view)
     {
         MPPlayer temppl = null;
         foreach(MPPlayer pl in PlayerList)
         {
             if(pl.PlayerNetwork == view)
             {
                 temppl = pl;
             }
         }
         if(temppl != null)
         {
             PlayerList.Remove(temppl);
         }
     }
     
     [RPC]
     void Client_GetMultiplayerMatchSettings(string map, string mode, string others)
     {
         CurrentMap = GetMap(map);
     }
     
     public MapSetting GetMap(string name)
     {
         MapSetting get = null;
         
         foreach(MapSetting st in MapList)
         {
             if(st.MapName == name)
             {
                 get = st;
                 break;
             }
         }
         
         return get;
     }
     
     [RPC]
     void Client_LoadMultiplayerMap(string map, int prefix)
     {
         Network.SetLevelPrefix(prefix);
         Application.LoadLevel(map);
     }
 }
 
 [System.Serializable]
 public class MPPlayer
 {
     public string PlayerName = "";
     public NetworkPlayer PlayerNetwork;
 }
 
 [System.Serializable]
 public class MapSetting
 {
     public string MapName;
     public string MapLoadName;
     public Texture MapLoadTexture;
 }
 

I've been told that I need to assign a value to my MapList, but I'm not sure where or how to do that. Any help would be greatly appreciated.