SpawnButton not working

Hi guys i created a guibutton with spawn with this script but it doesnt seem to be spawning my player.Here's my script.

 void OnGUI()
     {
         if(MatchStarted = true)
             {
             if(GUI.Button(new Rect(0,0,50,20),"Spawn"))
             {
             MyPlayer.Manager.networkView.RPC("Spawn",RPCMode.All);
             }
         }
     }

 [RPC]
     void Spawn()
     {
         if (networkView.isMine) 
         {
             FirstPerson.gameObject.SetActive (true);
             ThirdPerson.gameObject.SetActive (false);
         }
         else
         {
             FirstPerson.gameObject.SetActive (false);
             ThirdPerson.gameObject.SetActive (true);        
         }
 
     }
         [RPC]
         void Die()
     {
         FirstPerson.gameObject.SetActive (false);
         ThirdPerson.gameObject.SetActive (false);
     }
 }