Удаление объектов в Unity3D Сцене

public void DestroyVisibleEnemies ()
    {
        //Все
        if (SoundManager.singleton_ != null)
        {
        //    SoundManager.singleton_.PlaySoundFX (SoundManager.singleton_.blowSound_);
        }
 
        Vector3 collisionBoxPosition = (cameraTransform_.position - planetTransform_.position) / 2f;
        Quaternion collisionBoxRotation = cameraTransform_.rotation;
        Vector3 boxCollisionSize = Vector3.one * Vector3.Distance (planetTransform_.position, cameraTransform_.position);
        enemiesOnScreenColliders_ = null;
        enemiesOnScreenColliders_ = Physics.OverlapBox (collisionBoxPosition, boxCollisionSize / 2f, collisionBoxRotation, enemiesLayerMask_);
 
        enemiesOnScreen_.Clear ();
        foreach (Collider enemyCollider in enemiesOnScreenColliders_)
        {
            
            Enemy enemyRefrence = enemyCollider.transform.parent.GetComponent<Enemy> ();
 
            if (enemyRefrence != null)
                enemiesOnScreen_.Add (enemyRefrence);
        }
 
        foreach (Enemy enemy in enemiesOnScreen_)
        {
            if (enemy.isActive_ == true)
                enemy.ChangeState (enemy.enemyDisabledState_);
        }
    }

if (Input.GetMouseButtonDown(0))
             GameManager.singleton_.DestroyVisibleEnemies();