oh.... come to think of it, theres this flag for the weapons table, swarm, that is used for weapons like the hornet in retail FS2. It works with primaries, so if it did
$Swarm 4
then it would fire a quick burst of 4 shots from each of it's firing points (i think), then you'd have to wait whatever the firing rate says before you can fire again.
And maybe the FotG team can put in several variations, of say, the X-wings lasers, that have different firing configs (i just read several of the rogue squardon books again, and if you read... uhm, which one was it, uh, Iron Fist, theres a good several pages of Lara Notsil explaining how the X-wings guns can be set.)