Agree 100% this is an exploit; I've labeled it so several times
What makes me curious is that apparently, this has to do with the logfile the mission creates being read. When the gunner pos. is chnaged, co-ords are written to the log- so my curiosity lies in- why does the sim care at what X,Y pos a plane had a gunner seat pos. change? Unless it has something to do with autopilot