Yea, I like this idea. Sorry, but one of the reasons I like to play Freelancer more than Freespace (I admit it, sorry guys) is because Freespace is too clean. Freelancer, you get muzzle flash (which is a little wierd, and a little tiring on the eyes, but hey, I'll trade realism for that), the heavier weapons ACTUALLY make you run out of energy, and the energy ACTUALLY recovers like a powerplant should. In Freespace, you get little muzzle flash, the weapons either take 0 energy or take %10 energy every shot and recovers too quickly, the secondary weapons trail behind the enemy fighter, not go charging on an intercept course.... etc.
Granted, Freelancer doesn't have the fire cone, it's nice to have one. In Halo 1, you can't aim at a jackal's head with the .50 cal and expect it to hit. The .50 cal has a large cone that makes it real enough to be believeable, but not overdone enough to make the weapon useless. The Assault Rifle also has a cone to reduce the beastly-ness. Oh yea, and they both shake the screen, just like it would in RW.