Enemy AI doesn't shoot!

 using UnityEngine;
 using System.Collections;
 
 public class EnemyAi : MonoBehaviour {
 
     public GameObject Target;
 
     public float minDist = 20;
     public float maxDist = 10;
 
     public Transform FirePoint;
 
     public Rigidbody Bullet;
 
     float Health = 100f;
     float Damage = 25;
 
     public void InflictDamage() {
         Health -= Damage;
     }
 
     // Use this for initialization
     void Start () {
         Target = GameObject.FindGameObjectWithTag ("Player");
     }
     
     // Update is called once per frame
     void Update () {
         transform.LookAt(Target.transform.position);
 
         if (Health == 0) {
             Destroy(gameObject);
                 }
 
         if(Vector3.Distance(transform.position,Target.transform.position) >= minDist){
             
             transform.position += transform.forward * 4 *Time.deltaTime;
             
             
             
             if(Vector3.Distance(transform.position,Target.transform.position) <= maxDist)
             {
                 ShootAtHere();
             } 
         }
     }
 
     void ShootAtHere() {
 
         Rigidbody BulletSpawn;
 
         BulletSpawn = Instantiate (Bullet, FirePoint.position, FirePoint.rotation)as Rigidbody;
         BulletSpawn.AddForce (transform.forward * 1000);
 
     }
 }

There don't seem to be any Syntax errors, so I'm clueless!