old/application/controllers/Faq.php

<?php
    defined('BASEPATH') OR exit('No direct script access allowed');

    class Faq extends MY_Controller
    {

        public function __construct()
        {
            parent::__construct('faq');
        }

        public function index()
        {
            $this->load->view('header', ['active' => 'faq', 'title' => 'FAQ - Frequently Asked Questions']);
            $this->load->view('faq');
            $this->load->view('footer');
        }
    }