Can anyone tell me what the best way to deal with large numbers of defending AI starships is?
I'm at the end of a 14 hour campaign (AI level 5, 50 planet map), I'm at the last AI's homeworld, and the rest of my empire is reasonably well defended - at hour 10ish I fought off at 2k ship cross planet attack and rebuilt the damaged areas.
I've destroyed all of the core guard posts, and used leech starships to steal a whole bunch of core ships, and destroyed the others. I sent a couple of raid starships to ping the command station and tempt all the core ships defending that to attack me on my planet and I can reclaim or destroy all those. Now it only gets Mark IV reinforcement ships there (for reasons that aren't clear to me), so the occasional nuke takes care of them.
However, the AI seems to have got wise to these strategies, and the planet is now defended by 6 spire and 11 zenith starships that can't be nuked or tempted to follow me individually.
So, what kills starships in bulk? I've got a captured anti-starship arachnid fab, but the full cap of those, plus a whole bunch of assorted ships up to mark IV, plus the captured core ships (mostly drones) still get wiped out by the starship swarm all reinforcing each other.