BV, on tactical AT ac it used to be standard policy for us to collect/ drop off via a unit’s home base but this changed a number of years ago probably due to airfield fire cover etc as described above. For the larger AT which carry most pax it was probably always the case. I can remember flying to Brize many years ago to collect freight for Lossiemouth that had come in on a Tristar as that ac couldn’t land there.