Not able to Shoot in the direction of the hand

Friends, i have designed a model in blender and imported in Unity and applied ThirdPersonController, ThirdPersonCharacter, ThirdPersonUserControl on it and got animation y following the guidelines, now i have created a script for shooting the bullets and attached it to the rigged hand/gun. But whenever i click “Fire1” the bullet is getting shooted in other direction…

I want when i move the mouse, the hand should move in the direction of the mouse + body should rotate in the direction of the mouse (if on backside) and when i left click, it should fire a bullet in the direction of the mouse(one at a time).

Video for better understanding - http://tinypic.com/r/34yohli/9

I tried a script, but its not following the way i want…

var projectile : GameObject;
var fireRate = 0.5;
private var nextFire = 0.0;
var shotDelay = .5;

function Update ()
{
if (Input.GetButton (“Fire1”) && Time.time > nextFire)
{
nextFire = Time.time + fireRate;
var clone = Instantiate (projectile, transform.position, transform.rotation);

}

}

MouseMovement

using UnityEngine;
using System.Collections;

public class MouseMovement: MonoBehaviour
{

public float speed = 1.5f;
private Vector3 target;

void Start()
{
    target = transform.position;
}

void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        target = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        target.x = transform.position.x;
    }
    transform.position = Vector3.MoveTowards(transform.position, target, speed * Time.deltaTime);
}

}

Any help shall be appreciated… Thanks

I don’t know much about firing in the “air” because in my FPS, i used real prefabs that were the bullets. If your weapon shoot real objects, you should make a SpawnPoint.