gistfile1.txt

using UnityEngine;
using System.Collections;

public class EnemyBorn : MonoBehaviour {

	public GameObject EnemyPrefab;
	public float Timer = 6;
	public float Xposition = 5;
	public float Yposition = 2;

	// Use this for initialization
	void Start () {
		StartCoroutine(Loop(Timer));
	}
	
	// Update is called once per frame
	private IEnumerator Loop (float time) {
		while (true){
			yield return new WaitForSeconds(time);
			Instantiate(EnemyPrefab,new Vector2(Xposition,Yposition),Quaternion.identity);
		}
	}
}