Spwan and shoot bullet in direction of shooter?

Okay so i'm new in unity and got some problem with shooting bullet in direction of shooter. Could someone help me solve this out? Here are my classes:

 using UnityEngine;
 using System.Collections;
 
 public class characterCombat : MonoBehaviour {
     #region --Pubs--
     public GameObject ammo;
     public string weaponName = "H&K";
     public int weaponMinDmg = 4;
     public int weaponMaxDmg = 15;
     #endregion
     #region --Privs--
     #endregion
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
         if(Input.GetKeyDown(KeyCode.F))
         {
             Vector3 playerPosition = new Vector3(transform.position.x,transform.position.y,transform.position.z);
             Instantiate(ammo,playerPosition,transform.rotation);
         }
     }
 }
 
 using UnityEngine;
 using System.Collections;
 
 public class bulletMove : MonoBehaviour {
     
     #region --Pubs--
         public int bulletRange;
         public float bulletSpeed;
         public GameObject shooter;
     #endregion
     #region --Privs--
         private Vector3 startPos;
         private Quaternion rotation;
     #endregion
     
     // Use this for initialization
     void Start () {
         shooter = GameObject.FindGameObjectWithTag("Player");
         startPos = shooter.transform.position;
         rotation = shooter.transform.rotation;
     }
     
     // Update is called once per frame
     void Update () {
         float distance = Vector3.Distance(startPos,transform.position);
         Debug.Log(distance);
         float move = bulletSpeed * Time.deltaTime;
         transform.Translate(startPos * move);
         if(distance >=bulletRange)
         {
             Destroy(gameObject);
         }
     }
 }