50 services might look long. But there's an easy fast way, kind of an exploit. Find the shortest service, complete that one. Save and restart. do this until 50 is reached, it doesn't have to be different ones. Same goes for all the other '' completed X services '' trophies. PS; there even an faster way, but hey, it doesn't have to be so fast right . You're welcome
oh and another important tip is with RSN, it need more completions it is not 50, mine unlocked around 66, differs from person to person ... just keep doing this method on rsn then, same for the passenger boarding in RSN