[bX38] Class 70 from Llanwern to Newport and back

diesel #ts14 Scenario Final GB South Wales Coastal Route South Wales Coastal: Swansea to Bristol #rtdp{00000068-0000-0000-0000-000000002016} #scnr{538ed6d9-2c7c-46f6-bb81-1ef0a302eeab}