function on_xml_read()
    RegisterScriptCallback("on_xml_read", function(xml_file_name, xml_obj)
        local xml_to_change = [[gameplay\npc_profile_mlr.xml]]
        if xml_file_name == xml_to_change then
            local renegade_profile = [[
	<character id="mar_renegade_trader">
		<class>mar_renegade_trader</class>
		<specific_character>mar_renegade_trader</specific_character>
	</character>

	<character id="mar_renegade_mechanic">
		<class>mar_renegade_mechanic</class>
		<specific_character>mar_renegade_mechanic</specific_character>
	</character>
            ]]
            xml_obj:insertFromXMLString(renegade_profile)
        end
    end)
end