[HS]-1243 Airdrie to Balloch

#ts14 Scenario Final GB electric Glasgow Suburban Network: Helensburgh Central - Springburn Suburban Glasgow to Airdrie Class 455 EMU Southern Class 455/8 EMU Class 156 Loco #rtdp{0d24c332-bf47-4c62-bc34-0dd6cea6023b} London Overground BR Class 313 EMU Add-On #scnr{76b49e9b-e40a-4c0f-9b5d-896e41e233f4}