Move in the direction its facing C#

I have looked all over and found nothing that is working or I can take and use to move my player in the direction its facing. Can someone help me out?

{
    [Header("Player Controll")]
    public float MoveSpeed;
    public float JumpForce;
    public float Gravity;
    private float VerticalVelocity;

    private CharacterController Controll;
    private Camera_Controll Cam;

    void Start()
    {
        Controll = GetComponent<CharacterController>();
        Cam = GetComponent<Camera_Controll>();
    }

    void Update()
    {
        if (Controll.isGrounded)
        {
            VerticalVelocity = -Gravity * Time.deltaTime;

            if (Input.GetKeyDown("space"))
            {
                VerticalVelocity = JumpForce;
            }
        }
        else
        {
            VerticalVelocity -= Gravity * Time.deltaTime;
        }

        float MoveDirFacing = Input.GetAxis("Mouse X");

        if (Input.GetMouseButton(1))
        {
            transform.Rotate(new Vector3(0, MoveDirFacing * MoveSpeed * Time.deltaTime, 0));
        }

        Vector3 moveDir = new Vector3(0, VerticalVelocity, 0);
        moveDir.x = Input.GetAxis("Horizontal") * MoveSpeed;
        moveDir.y = VerticalVelocity;
        moveDir.z = Input.GetAxis("Vertical") * MoveSpeed;
        Controll.Move(moveDir * Time.deltaTime);
    }
}

Hi,
you can use Controll.Move(transform.TransformDirection(moveDir) * Time.deltaTime);
transform.TransformDirection will transform your vector that it fits the direction of you character.

Look at transform.Forward, it returns a unit Vector3 in the direction a transform is facing.