
I never really realized they were salted warheads, always read over that part...
A 5GT salted warhead actually sounds like a doomsday device right out of Dr. Strangelove. It doesn't really make sense outside of genocidal applications. Especially in space - why would you want salted warheads in an environment without fallout?
I guess the Fed supportes can make a claim that the GT(V)A always had genocidal tendencies... "A planet wants to secede from our alliance? No problem, we can afford to lose a planet - WITH 0 POPULATION! (insert evil laughter)" or at least "A Vasudan Planet? Why waste marines to get a colonizeable planet, just doomsday their asses and leave scorched earth behind!"
Against Shivans, it makes no sense whatsoever.
Perhaps it was for the Vasudans. I've always wondered about that. What would have happened to the losing species of the Terran / Vasudan war exactly?
As for the collapsed-core Molybdenum, I've always taken it that somehow the atoms themselves had been collapsed. As for how it's kept in such an ultra-dense configuration, I point out "Any sufficiently advanced technology is indistinguishable from magic." and that this same society can produce anti-matter by the ton, travel between stars in hours, possesses beam cannons that can glass whole planets, and whose vessels are routinely hit by those cannons.
There was a time we were pretty sure we'd never break the sound barrier. A stone age human would be utterly confounded by our current technology. (granted, 500 years is quite a fast advancement.)