Have a problems with a values

video of the problem : https://www.youtube.com/watch?v=wTWatycLKW8&feature=youtu.be

 private AudioSource SPR;
 public Animator MazzleAnim;
 public Animator ShotingSAnim;
 public Animator ReloudingAnim;
 public float fireRate = 0.5f;
 public float Relouding = 0.5f;
 float NextRelouding = 0.5f;
 float nextFire = 0.0f;
 public float CorantineOfReloadingText = 0f;
 public int AmmoCount = 7;
 public int AllBullet = 30;
 public int MaxBulletInHolder = 7;
 public GameObject OverheatText;
 public GameObject ReloudingText;
 public Text AmmoUI;
 public Text AllAmmoUI;

 void Start ()
 {
     Debug.Log("Welcome to SniperShot and way i write this anybody hear me!");
     AmmoUI.text = AmmoCount.ToString ();
     AllAmmoUI.text = AllBullet.ToString ();
     SPR = GetComponent<AudioSource> ();
 }

 IEnumerator TSetActive ()
 {
     {
         yield return new WaitForSeconds (CorantineOfReloadingText);
         OverheatText.SetActive (false);
     }
 }

 IEnumerator TRelouding ()
 {
     {
         yield return new WaitForSeconds (CorantineOfReloadingText);
         ReloudingText.SetActive (false);
         AllBullet = AllBullet - AmmoCount - MaxBulletInHolder;
         AmmoCount = MaxBulletInHolder;
         AmmoUI.text = AmmoCount.ToString ();
         AllAmmoUI.text = AllBullet.ToString ();
     }
 }

 void Update ()
 {
     if (Input.GetButtonDown ("Fire1") && Time.time > nextFire & AmmoCount > 0 & (Time.timeScale == 1)) 
     {
         nextFire = Time.time + fireRate;
         RifleFire ();
         OverheatText.SetActive (true);
         StartCoroutine (TSetActive ());
         AmmoCount = AmmoCount -1;
         AmmoUI.text = AmmoCount.ToString ();
     }

     if (Input.GetButtonDown ("Reload") && Time.time > NextRelouding & AllBullet > 0 & (Time.timeScale == 1)) 
     {
         NextRelouding = Time.time + Relouding;
         ReloudingAnim.Play ("SniperShotPReloud");
         SPR.Play ();
         ReloudingText.SetActive (true);
         OverheatText.SetActive (false);
         StartCoroutine (TRelouding ());
         StopCoroutine (TSetActive ());
     }
     if (AllBullet <= -1) 
     {
         //Debug.Log ("d");
         AllBullet = 0;
         AmmoCount = MaxBulletInHolder;
         AmmoUI.text = AmmoCount.ToString ();
         AllAmmoUI.text = AllBullet.ToString ();
     }
     if (Time.timeScale == 0) 
     {
     } else 
     {
         transform.position = Camera.main.ScreenToWorldPoint (new Vector3 (Input.mousePosition.x , Input.mousePosition.y, 10f));
     }
     //if(Time.timeScale == 1)
     //{
         //transform.position = Camera.main.ScreenToWorldPoint (new Vector3 (Input.GetAxis ("XControll"), (Input.GetAxis ("YControll"))));
     //}
 }

 void RifleFire ()
 {
     if (Time.timeScale == 0)
     {
         Debug.Log ("timeScale == 0 Shooting is disabled");
     }

     else
     {
         MazzleAnim.Play ("SniperShotMazzleAnim");
         ShotingSAnim.Play ("SniperShotShotS");
     }
 }

}