A note regarding the XR2-01_Bay/XR5-01_Bay vessels you will see in saved
Ravenstar and Vanguard scenarios: this is an invisible phantom vessel attached
behind the XR vessel’s payload bay to force the Orbiter core to render the payload
bay even when no cargo is present. If you delete the vessel from the scenario file no
harm is done: the XR vessel will recreate it automatically when the scenario loads.
Do not delete the phantom vessel in-game, however, or the cargo bay will no longer
be rendered in the payload camera view unless there is at least one payload module
in close proximity to the bay. This is an Orbiter core limitation.