The default ship numbers are not real good. There's not enough differentiation between light and heavy fighters, and no reason at all to use anything but 'very heavy fighters.'
The level-up system is broken for multiplayer. It doesn't make sense and doesn't work in it at all. really.
my first eyeball take on the basis for this mod would be to flatten the differences on the fighters, making the ships less level based and giving the light fighters a purpose.
in general too, the most things have too much offensive power and it gets clearly out of control at higher levels.
Also it's obvious that at some point DA intended to allow players to interchange scanners and engines and just took that capability out only partway. If someone made packages and updated commodity lists in shops there would be purchaseable engines.
This will take some DLL changes too to provide clientside text for the items.
No good deed goes unpunished