Auto-turrets, im sure every mod will eventually face such request, quick searching found no such thing yet... So, here it is!
A certain Star Wars mod has/had some sort of working concept of turrets that fire automaticly, as i know nothing of Freelancer editing i dont know how hard it is to mod in such feature but it would certainly have its uses and would enable larger capital-ships to behave the way they should.
Im saying all this in a Single-player perspective, there would be rather nasty balance-issues in PvP if such things existed or they would need very brutal testing first. If possible it would be nice to have separate turrets for normal vanilla-gameplay and then toned down auto-versions of the same turrets that one maybe cant fire manually at all, etc...