Hi!!
How do I set the number of objects in the enemy clone?
thanks 
Code this:
using UnityEngine;
using System.Collections;
public class EnemyStart : MonoBehaviour {
public Transform enemy;
void Update () {
enemy.transform.position = new Vector3(Random.Range(-12.0f,10.0f),0,0);
Instantiate(enemy,enemy.position,transform.rotation);
}
}
I would just use a for loop 
Hi
The first idea that comes to mind would be to wrap the Instatiate code in an if-statement and create an enemyCout variable where you preset how many enemies you want, then check the count in the if-satement to see if the count is less than or equal to the value in enemyCount.
Whether this would be the correct way of doing it, I don’t know, but as I wrote earlier this is the first idea that come to my mind.
I believe that a loop would be the easiest way actually. Have it check if the number of clones = to max number of mobs, if it is not, instantiate some more 
thanks friends!!
happening with the for loop…
public Transform enemy;
public int enemyCount = 100;
void Start(){
StartCoroutine(method());
}
void Update () {
}
IEnumerator method(){
for(int a = 0; a < enemyCount; a++){
yield return new WaitForSeconds(1);
Instantiate(enemy,enemy.position,transform.rotation);
enemy.transform.position = new Vector3(Random.Range(-12.0f,10.0f),0,0);
}
}
Good thing that its working. Good luck with the game.
-Jonas Rasmussen