No I am not joking. You stated, incorrectly, that I had failed a course. A course I have never attended. By your rationale I have also failed a food handling, airframe technician's, chinook crewman and HGV course.
I asked a question when I mentioned what were admin doing and hypothesised, not assumed, as to what they may have been doing.
But, to get back on track, the guy is an SAC armourer. There must be many SAC armourers serving OOA (not OOTW!) in NFU's. Therefore, there must be as many on a 4 month reserve. Therefore, any one of these on a 4 month reserve could have been chosen to fill this post even if it meant that someone else had to do courses before deploying. Unless, of course, all of those on reserve had welfare, sickness or whatever may have happened to lead to someone being pinged as per the original post?