Punch of shot is reduced over distance. So if weapon has range of 1000 and it does 100 damage, in range of 900 hit scores 1 damage. There is no parameter to change this.
Indeed, but there is a way to change this : make the weapon do more damage, so that when the fighter is "visible" (and by visible I mean not an almost invisible dot flying 1 km or 2 away, or less, but still as big as a dot), you can actually gun it, like what you see in space movies. There is generally a big image of your target in SW movies.
In my opinion, the only way to achieve this in SS is to make small objects like fighters, bigger than they really are (like that pic you posted here with one of your TIE fighter standing next to a Milo Viper fighter or so.
What good is to have exact size replicas if you can't do anything practical with them on SS?
Nevertheless I will try your mod (even uploaded to SSC, so it doesn't get lost over time) and I will let you know.
What comes to relative size & speed, official sizes works just right with speeds seen in X-Wing series (includes X-Wing, TIE Fighter, X-Wing vs TIE Fighter and X-Wing Alliance). Get my mod and see yourself (arcade mode recommended) (...) Sizes are taken from official Star Wars Databank
Yeah all that is important but each game engine is different. In terms of development, I suggest that SS has little or nothing in common with those SW games. It is up to the modders to adapt sizes, damage, speed and whatever else is necessary to make them perform as we see on TV, all this on realistic model.
As nobody here has ever flown a TIE Fighter, a X-Wing, etc. and never will (you probably will if you believe in alternate universes and reincarnation [:D][&o][X(]...), the only reference other than speeds, weapons, etc. that we have regarding their performance is what we see on the movies.
So as SW is a "Space Opera" Sci-fi show, all craft present should represent this, and though somepeople won't like it, you should be able to take a death star on the same conditions of old movie Episode 1.
In my opinion, the best SW mod will reflect the marvel and wonder of the SW universe and Space Opera style, while giving the impression of a realistical, carefully-balanced ship.
In fact, this is the greatest wonder of SS!!![&o]
=S=
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. As per visible turrets, I'll work on those once I get a more complete ship set. They will make an appearance, though! Finally, concerning the ISD's shield generators, I mentioned in another thread a while back that I consider large, exposed, attention-attracting, poorly-armored, radar-dome-looking things to be sensors, not shield generators 
