XML : Add Shipping Method To Opencart 2.0.2.0

I have this code that works with Opencart 1.5, it adds the Shipping Method to the order list, I have changed it to flag on Express Shipping, however I don't really know what I am missing to make it work for Opencart 2.0.

  <modification>      <id>Shipmethod</id>      <version>1.0.</version>      <vqmver>2.1.x</vqmver>      <author></author>      <file name="admin/model/sale/order.php">          <operation>              <search position="replace" regex="true"><![CDATA[~SELECT o.order_id,~]]></search>              <add><![CDATA[SELECT o.order_id, o.shipping_method,]]></add>          </operation>      </file>      <file name="admin/controller/sale/order.php">          <operation>              <search position="before"><![CDATA['action'        => $action]]></search>              <add><![CDATA['shipping_method'  => $result['shipping_method'],]]></add>          </operation>      </file>      <file name="admin/view/template/sale/order_list.tpl">          <operation>              <search position="before"><![CDATA[<td class="left"><?php if ($sort == 'o.date_added') { ?>]]></search>              <add><![CDATA[                <td style="width:125px">Express Shipping</td>              ]]></add>          </operation>          <operation>              <search position="before"><![CDATA[<td><input type="text" name="filter_date_added"]]></search>              <add><![CDATA[<td></td>]]></add>          </operation>            <operation>              <search position="before"><![CDATA[<td class="left"><?php echo $order['date_added']; ?></td>]]></search>              <add><![CDATA[<td class="left" style="color:red;"><?php if ($order['shipping_method'] === "3. UK Express Delivery") {echo "YES";};?></td>  ]]></add>          </operation>      </file>  </modification>    

Any help to make it work with Opencart 2.0 would be great :)