Theemile wrote:
The big follow on questions from this is what didn't the MAN also use freighters to drop off tons of Gtorps, programmed to swim around for weeks prior to attacking instead of using the Sharks on complicated multi month maneuvers? just a handful of freighters, originating from random systems, at random timing could drop more tops of munitions anonymously than 1 squadron of SD(p)s. Grayson would be a harder hit, but not Manticore, with all the system traffic and wormhole traffic.
Which, of course, is exactly how Galton thought Oyster Bay had been pulled off. Freighters dumping (impeller powered) graser-head weapons. (Though quite how Galton thought the target scouting had been done was not addressed; as they're unaware of anything like a Ghost)
The big thing the Spiders brought to the party, as Theemile also said, was all the Cataphract pods they deployed to coast in-system at 0.2c. (Yay, pod-layers).
For whatever reason the MAN didn't fully trust the graser torps effectiveness as they'd never previously been used in combat. So I think every target was redundantly targeted by graser torps and Cataphract pods. Freighters could easily have swum out the graser torps; but they'd have no plausible reason for the kind of course and velocity you'd need to coast in the Cataphract pods - so maybe the MAN didn't want to give up that redundancy and that's why they used the Spiders.
But you're right - given that we now know the graser torps worked you didn't need Spiders to deliver them; they could have been brought in by freighters and could have been sufficient on their own for the OB attacks.