Nuke : I'm saying the fighters in FS fly far more like a WWII dog fight than "actual" space combat - if that were ever to happen.
The FS fighters turn and roll after each other, trying to get on each others tails, and fire guns -you get a wide array of airplane maneuvers that really shouldn't work in space happening as well. This is the kind of behaviour that would never ever work in space using any kind of traditional propulsion system. Real space travel (and space fight, if you must) would be a lot more like 2001: A Space Odyssey than Star Wars.
There would definetly be no guns, if there were any they would aim independently of the nose of your ship at the very least. You'd be moving so incredibly quickly it would be near-impossible to see your opponent until they went rushing by you, which of course you wouldn't hear, and everything would be quite dark (I think, I'm not really sure though... the colourful nebulae backgrounds are usually a no-go though). Combat would be done almost exclusively with missiles, and be like air combat circa 2004: you'd get a radar blip from WAY beyond visual range, launch your missile, see it streak off out of eye shot, and 20 minutes later find out it hit. Either that or you never detected the guy, and he blows you up, which would simply happen out of the blue.
Of course, this lack of realism makes the game far more fun, as spending as much time slowing down your ship via having to turn around and produce thrust in the opposite direction, or firiing retro-rockets, would be a headache, and make guns useless, as all the ships would be able to strafe in any direction. The "space" part is modeled by removing gravity from the airplane physics - so yes, no stalls, spin outs, smashing into the ground...