ETeeskiTutorials FPS1.12 Problem

I have problem with FPS1.18 muzzle flash

The gun looks fine in scene view but when I test the game out the gun goes way off to the side
When I exit out of play mode the gun goes back to the original location.
It only started doing this with this tutorial.
Here is my gun script.

Code (csharp):

1. var cameraObject : GameObject;
2. @HideInInspector
3. var targetXRotation : float;
4. @HideInInspector
5. var targetYRotation : float;
6. @HideInInspector
7. var targetXRotationV : float;
8. @HideInInspector
9. var targetYRotationV : float;
10.  
11. var rotateSpeed : float = 0.3;
12.  
13. var holdHeight : float = -0.5;
14. var holdSide : float = 0.5;
15. var ratioHipHold : float = 1;
16. var hipToAimSpeed : float = 0.1;
17. @HideInInspector
18. var ratioHipHoldV : float;
19.  
20. var aimRatio : float = 0.4;
21.  
22. var zoomAngle : float = 30;
23.  
24. var fireSpeed : float = 15;
25. @HideInInspector
26. var waitTillNextFire : float = 0;
27. var bullet : GameObject;
28. var bulletSpawn : GameObject;
29.  
30. var shootAngleRandomizationAiming : float = 5;
31. var shootAngleRandomizationNotAiming : float = 15;
32.  
33. var recoilAmount : float = 0.5;
34. var recoilRecoverTime : float = 0.2;
35. @HideInInspector
36. var currentRecoilZPos : float;
37. @HideInInspector
38. var currentRecoilZposV : float;
39.  
40. var bulletSound : GameObject;
41. var muzzleFlash : GameObject;
42.  
43. function Update ()
44. {
45.     var holdMuzzleFlash : GameObject;
46.    
47.     var holdSound : GameObject;
48.    
49.     if(Input.GetButton("Fire1"))
50.     {
51.         if(waitTillNextFire <= 0)
52.         {
53.             if (bullet)
54.                 Instantiate(bullet,bulletSpawn.transform.position, bulletSpawn.transform.rotation);
55.             if (bulletSound)
56.                 holdSound = Instantiate(bulletSound, bulletSpawn.transform.position, bulletSpawn.transform.rotation);
57.             if (muzzleFlash)
58.                 holdMuzzleFlash = Instantiate(muzzleFlash, bulletSpawn.transform.position, bulletSpawn.transform.rotation);
59.             targetXRotation += ( Random.value - 0.5) * Mathf.Lerp(shootAngleRandomizationAiming, shootAngleRandomizationNotAiming,ratioHipHold);
60.             targetYRotation += ( Random.value - 0.5) * Mathf.Lerp(shootAngleRandomizationAiming, shootAngleRandomizationNotAiming,ratioHipHold);
61.             currentRecoilZPos -= recoilAmount;
62.             waitTillNextFire = 1;
63.         }
64.     }
65.     waitTillNextFire -= Time.deltaTime * fireSpeed;
66.    
67.     if (holdSound)
68.         holdSound.transform.parent = transform;
69.     if (holdMuzzleFlash)
70.         holdMuzzleFlash.transform.parent = transform;
71.    
72.     currentRecoilZPos = Mathf.SmoothDamp( currentRecoilZPos, 0, currentRecoilZposV, recoilRecoverTime);
73.    
74.     cameraObject.GetComponent(MouseLookScript).currentTargetCameraAngle = zoomAngle;
75.  
76.     if(Input.GetButton("Fire2")){
77.         cameraObject.GetComponent(MouseLookScript).currentAimRatio = aimRatio;
78.         ratioHipHold = Mathf.SmoothDamp(ratioHipHold, 0, ratioHipHoldV, hipToAimSpeed);}
79.     if(Input.GetButton("Fire2") == false){
80.         cameraObject.GetComponent(MouseLookScript).currentAimRatio = 1;
81.         ratioHipHold = Mathf.SmoothDamp(ratioHipHold, 1, ratioHipHoldV, hipToAimSpeed);}
82.        
83.     transform.position = cameraObject.transform.position + (Quaternion.Euler(0,targetYRotation,0) * Vector3(holdSide * ratioHipHold, holdHeight * ratioHipHold, 0) + Quaternion.Euler(targetXRotation, targetYRotation, 0) * Vector3(0,0,currentRecoilZPos));
84.  
85.     targetXRotation = Mathf.SmoothDamp( targetXRotation, cameraObject.GetComponent(MouseLookScript).xRotation, targetXRotationV, rotateSpeed);
86.     targetYRotation = Mathf.SmoothDamp( targetYRotation, cameraObject.GetComponent(MouseLookScript).yRotation, targetYRotationV, rotateSpeed);
87.    
88.     transform.rotation = Quaternion.Euler(targetXRotation, targetYRotation, 0);
89. }

Thanks for the help.