Variable duration player-fighterbeams.
Basically, by setting the firewait and/or beam duration to -1 will result in the beam firing only as long as either A ), there is weapons power to sustain it, or B ), the player has the fire button pressed. That way, if you only want a short burst, just tap the trigger, but if you want a sustained beam, hold it down until either your target is destroyed or the weapons energy is depleated. This would be very useful for the Whitestar in TBP.
Remove the need for player-craft to have secondary firepoints, either on the models or in the tables.
Allow variables to be used in (command) briefings (persistant variables obviously) and debriefings.