[Unity 5] C# Third Person MMO Style Character Controller

using UnityEngine;
using System.Collections;

public class MMOCharacterController : MonoBehaviour {

    public Transform playerCam, character, centerPoint;

    private float mouseX, mouseY;
    public float mouseSensitivity = 10f;
    public float mouseYPosition = 1f;

    private float moveFB, moveLR;
    public float moveSpeed = 2f;

    private float zoom;
    public float zoomSpeed = 2;

    public float zoomMin = -2f;
    public float zoomMax = -10f;

    public float rotationSpeed = 5f;



    // Use this for initialization
    void Start () {

        zoom = -3;

    }

    // Update is called once per frame
    void Update () {

        zoom += Input.GetAxis ("Mouse ScrollWheel") * zoomSpeed;

        if (zoom > zoomMin)
            zoom = zoomMin;

        if (zoom < zoomMax)
            zoom = zoomMax;

        playerCam.transform.localPosition = new Vector3 (0, 0, zoom);

        if (Input.GetMouseButton (1)) {
            mouseX += Input.GetAxis ("Mouse X");
            mouseY -= Input.GetAxis ("Mouse Y");
        }

        mouseY = Mathf.Clamp (mouseY, -60f, 60f);
        playerCam.LookAt (centerPoint);
        centerPoint.localRotation = Quaternion.Euler (mouseY, mouseX, 0);

        moveFB = Input.GetAxis ("Vertical") * moveSpeed;
        moveLR = Input.GetAxis ("Horizontal") * moveSpeed;

        Vector3 movement = new Vector3 (moveLR, 0, moveFB);
        movement = character.rotation * movement;
        character.GetComponent<CharacterController> ().Move (movement * Time.deltaTime);
        centerPoint.position = new Vector3 (character.position.x, character.position.y + mouseYPosition, character.position.z);

        if (Input.GetAxis ("Vertical") > 0 | Input.GetAxis ("Vertical") < 0) {

            Quaternion turnAngle = Quaternion.Euler (0, centerPoint.eulerAngles.y, 0);

            character.rotation = Quaternion.Slerp (character.rotation, turnAngle, Time.deltaTime * rotationSpeed);

        }

    }
}