Air Lucifer?
Air Luxor for a period had the contract to conduct flights for UK MoD from the UK to the Falklands with a 1-2 hr stop at Ascension. They used a TriStar at first, got rid of that, ran an A330. Then BMI took over for a while also with an A330.
I've always suspected that despite Red Roo arrangements AL having over capacity would like to use an A330 for all sorts of military runs including proximity trials and training for both RAF and RAAF tankers.
216Sqn RAF were "busy" at the time AL appeared on the scene. I missed the experience but a colleague who did not just called it bland, no horror stories as in the links above. Also the EEC was getting restless about civilian pax. So charters came in and are still in.
Looks like both the RAF and the RAAF use cheap and cheerful in times of overstretch and to conserve ageing airframes.
Air Lucifer not to be confused with Luxor Air which is Egyptian by the way.