I think we've needed something like this for some time.
My idea was to have a 0 point modification - Linked Targeting Systems - limited to Tie Fighters (and perhaps a couple other imperial ships like interceptors and bombers) that gives an offensive re-roll for each ship with the same modification that has fired at the same target this turn.
This reinforces the tactic of swarming single targets. Fluffwise, each ship firing affects the flight path of the target and makes them more predictable.
I also really like Major Jugglers idea and I think the two could coincide.