How can i spawn my player in matchmaker using my UI?

I have been trying to fugure out how i can make my own UI for matchmaker for a while now. I have been kind of successfull, I was able to create the internet match the only problem was that when i do so my player prefab does not spawn. I did assing a prefrab to the networkmanager and that prefab has the components it needs but since i wanted to use my own UI i probably made a mistake or did things the hard way. Here is my C# Code:

 using UnityEngine;
 using System.Collections;
 using UnityEngine.Networking;
 using UnityEngine.UI;
 using UnityEngine.Networking.Types;
 using UnityEngine.Networking.Match;
 
 public class Manage : NetworkManager 
 {
     public Text inp;
     NetworkMatch networkMatch;
 
     void Awake()
     {
         networkMatch = gameObject.AddComponent<NetworkMatch>();
     }
 
     // Use this for initialization
     public void StartGame () 
     {
         CreateMatchRequest create = new CreateMatchRequest();
         create.name = inp.text;
         create.size = 2;
         create.advertise = true;
         create.password = "";
 
         networkMatch.CreateMatch(create, OnMatchCreate);
     }
 
     // Update is called once per frame
     public void JoinGame () 
     {
         
     }
 }

This is my code that was used. My question is, When i create my match in the function "StartGame" do i need to add code to spawn the objects or am i doing things the hard way?