MSFS 2020 Scenery--Cromarty Firth Oil Rigs Scotland. The Cromarty Firth is known to be a parking place for oil rigs. Unfortunately the default MSFS 2020 scenery does not represent this. Here the Firth is void of any offshore platforms. My little add-on scenery places three rigs I found in the SDK into the firth. Version 1.0.1. By Christian Grimsel.