Character movement distorted when holding weapon

Hello everyone,

Here is my problem:

I have a player and a weapon. If the player walks or runs around without the weapon, he is able to run normal.

If the weapon is attached to the player, he walks a bit left with every animation loop and stutters when running with the weapon, but walking backwards (with S-Key) is possible without a distortion. It's pretty weird...

You can see it for yourself here: Webplayer

Try to run or walk directly to a destination without and then with the weapon

Controls:

• Walk = W

• Run = W + R

• Walk backwards = S

The weapon has a box collider component, wich is controlled by the item_pickup script and switched off when the weapon gets parented.

Item-pickup is written to parent the weapon to the weaponmount-Empty in the right hand and to disable the weapons box collider component.

What I tried so far:

• I can only prove the colliders innocence for this behaviour. It gets disabled when you grab the weapon, but the stutters are still there.

Here is the item_pickup script (attached to the player)

 var clone : GameObject;
 var Player : GameObject;
 
 var item_name;
 var WeaponHand : GameObject;
 
 var showGUI = false; 
 
 WeaponHand = GameObject.FindWithTag("weaponmount"); //The Tag of The Empty that's parented to the right Hand
 Player = GameObject.FindWithTag("Player");
 
 function OnTriggerStay (other : Collider) {
     if (other.gameObject.tag == "weapon"){
         
         showGUI = true;    
         item_name = other.gameObject.name;
         
         if (Input.GetKeyUp ("e")){
         
             clone = GameObject.Find(item_name);  //Find name of the Item we are colliding with
         
             clone.transform.parent = WeaponHand.transform;
             clone.transform.position = WeaponHand.transform.position;
             clone.transform.rotation = WeaponHand.transform.rotation;
             clone.collider.enabled = false;
             showGUI = false;
             Debug.Log("Parented !");        
             }
         
         }
     }    
         function OnGUI(){
             if (showGUI){
                 GUI.Label (Rect (500,500,1000,1000), "[E] Waffe aufnehmen"); //"Press E to Pickup the Weapon"
             }
            
           }

Here is also my walk-script (also attached to the player):

 using UnityEngine;
 using System.Collections;
 
 [RequireComponent (typeof(CharacterController))]
 
 public class walk : MonoBehaviour {
     public float moveSpeed = 8;
     public float Strafespeed = 2.5f;
     public float rotateSpeed = 250;
     public float runspeed = 16;
 
     private Transform _myTransform;
     private CharacterController _controller;
     
             
     public void Awake(){
         _myTransform = transform;
         _controller = GetComponent<CharacterController>();
     }
     
     // Use this for initialization
     void Start () {
     animation.wrapMode = WrapMode.Loop;
 
     }
     
     // Update is called once per frame
     void Update () {
         DontDestroyOnLoad (this);
         Turn();
         move();
         attack();
 }
     
     private void Turn(){
                 if(Mathf.Abs(Input.GetAxis("Rotate Player")) > 0){
             _myTransform.Rotate(0, Input.GetAxis("Rotate Player") * Time.deltaTime * rotateSpeed, 0);
     }
 }
     
         private void move(){
         
             
             if(Mathf.Abs(Input.GetAxis("Move Forward")) > 0){
     
                 animation.CrossFade("walk", 0.2f);
                 _controller.SimpleMove(_myTransform.TransformDirection(Vector3.forward) * Input.GetAxis("Move Forward") * moveSpeed);
             
             if(Mathf.Abs(Input.GetAxis("run")) > 0 && Mathf.Abs(Input.GetAxis("Move Forward")) > 0){
                                 
                                 animation.CrossFade("run", 0.2f);
                                 _controller.SimpleMove(_myTransform.TransformDirection(Vector3.forward) * Input.GetAxis("run") * runspeed);
                         }
             }
             
             if(!(Input.anyKey)){
                     
                 animation.CrossFade("idle", 0.2f);
                 
             }    
     }
     private void attack(){
                 
                         if(Input.GetMouseButtonDown(0)){
                                 //Debug.Log ("Klick");
                                 animation.wrapMode = WrapMode.Once;
                                 animation.CrossFade("attack2", 0.2f);
                                 return;
             
                                 
                         }
             
                 }
     
     
 
     }
 
 

Here are the properties of my player character: