Help with the third person controller script

I am trying to make a third person shooter in which the movement of the mouse moves the crosshair and also rotates the character . The script works somewhat but if I move forward or turn around the firing action (input) is not getting triggered and while moving or turning I cannot look up or down,so basically the mouse input freezes. Here is my script:

 using UnityEngine;

using System.Collections;

public class PlayerController : MonoBehaviour {

 Animator anim;
 private float inputv;
 private float inputh;
 Rigidbody rbody;

 public float speed_walk;
 public float speed_run;
 public float speed_turn;
 public float pitch_MAX;
 public float pitch_MIN;

 private float yaw = 0.0f;
 private float pitch = 0.0f;
 public float speedH = 2.0f;
 public float speedV = 2.0f;

 CharacterController character;

 // Use this for initialization
 void Start () {
     anim = transform.GetComponent<Animator> ();
     rbody = transform.GetComponent<Rigidbody> ();
     character = transform.GetComponent<CharacterController> ();
 }
 
 // Update is called once per frame
 void Update () {
     if(Input.GetMouseButtonDown(0)){
         print ("DONE");
         anim.Play ("assault_combat_shoot",-1,0.0f);
     }
     inputv = Input.GetAxisRaw ("Vertical");
     inputh = Input.GetAxisRaw ("Horizontal");

     yaw += speedH * Input.GetAxis("Mouse X");
     pitch -= speedV * Input.GetAxis("Mouse Y");

     anim.SetFloat ("inputv",inputv);
     float movez = inputv * 5f;
     float movex = inputh * speed_turn;
     //transform.Rotate (new Vector3(0.0f,movex,0.0f));
     yaw += movex;
     transform.eulerAngles = new Vector3(Mathf.Clamp(pitch,pitch_MIN,pitch_MAX), yaw, 0.0f);

     if (movez > 0) {
         Vector3 vec = transform.forward;
         vec.y = 0;
         rbody.velocity = vec*speed_walk;
     } else {
         rbody.velocity = Vector3.zero;
     }
     Vector3 movement = new Vector3 ();
 }

}

I want to know what is locking the camera movement and firing while running or turning.