I heard about this and got it working the other day:
https://www.youtube.com/v/oEVrdwZ9bEkThe only thing stopping me diving in right now is my flight stick being elsewhere right now, and not 100% happy with how it flies via an Xbox controller.
You can play the entire original campaign right now, or play it 'reimagined', in which the campaigns are being rewritten to take advantage of the new engine & modern PC power (currently 8 of the 13 battles have been redone).
The only downside seems to be that the 'secret order' missions are now just upfront objectives, although this does mean no laborious scrolling through 2 separate mission briefings each time.
It's mental what people can accomplish these days, apparently this fan remake of a 29 year old game (using a 24 year old game's engine) has VR support.