Truly great work: I truly like the solutions you proposed to the following problems and I think that actually all are quite good.
I Give you here a document on interceptor weapons: http://files.the-underdogs.info//games/r/renegade/files/renegade.pdf
Here you will find info on: lasers (gold/orange bolt, similar to WCprophecy's tachyon guns), electron particle cannons (silvery/blue bolt rapidly fading with distance), neutron particle cannons (emerald green bolt), thorium phase inducers (unknown as they don't appear in battle for jacob's star), cone lasers (I would very much to see those in a dogfight: same as lasers but cone bolts allowing higher chance of reaching the target, although disipates more quickly than the standard laser) and mass drivers (orange spherical shots). (The special fighter spinal mount (vrak'tarr only) is not there, as the vrac'tarr is a newer design: For this cannon, I was thinking as something slightly similar to the wing commander prophecy devastator's heavy plasma cannon).
You'll find also everything on missiles:from more devastating to more accurate: dumbfire, radiation intensity seeking (say heat seeker), surface scanning silhouette (say image recognition) transponder guided missiles (say friend or foe) and hell missiles (those evenly distribute damage across all the sections of a fighter's armour).
3 special missiles will appear at some point: torpedoes for the new dedicated anti cap ship interceptors, ground bombs for ground targets such as tanks and ground forces, and a special tech capture missile (say leech) for capturing TOG interceptors and patrol ships (although several strikes will be necessary to capture those. Those missiles won't work on destroyers and beyond).
Also, the renegade ships have uneven armour plating (like in wing commander): for instance, the renegade penetrator is finely protected front and back, but has very thin side armour, this means that when you dogfight with a penetrator, you must know the rules.
Some ships (heavy interceptors like the fluttering petal or the gladius) have turrets (with a varrying number of guns, although mostly 2). Those can fire on a 360 degree pattern (like the turrets of an ursa or medusa in freespace).
Some missions will ask the pilot to retrieve an ejected pilot (whether he be a renegade or TOG pilot). For this, I thought a pilot should call a support ship when he has secured the area: the support ship would be a renegade pegasus class corvette for retrieving ejected pilots or later in the came a captured TOG meteorum carrier corvette to retrieve disabled fighters). The pilot will call them ingame using the reinforcements command.
I think that's about all now. The only thing I need to find now is data on tanks and ground forces.