'ey Tim James, if you still got that Entrenched Homeworlder / Turtle save around, you could try what I did, provided that you can reach the AI homeworld with a sizable enough fleet. This does involve tricking the AI, and I never really felt like it was a real victory, but I did manage to down the command station. I just wanted to finally win a game, lol. I had already wiped out the other AI's (Turtle) homeworld a few hours earlier though, which was surprisingly easy at the time, so all I had was one single target left. This was in version 3.0.0.0, so I'm not sure if something's changed since then. Small map, I think 25 planets. This was my second game, which I had also given up on earlier, but decided to try it again later on, after learning a few new things.
I'm attaching some screenshots of the assault on the Homeworld.
Before attacking the AI homeworld, I had basically nuked the nearby planets, mostly overly reinforced III's and IV's. I didn't care about AI progress at that point anymore. I had the fleet I wanted to use for the final attack, so it didn't matter if I lost a few planets from the resulting AI attacks or whatever.
Screen 1
Here's what I'm up against. The AI homeworld that I had accidentally put on alert from about the mid-game, nearly 5000 ships (mostly IV and Core), 13 spires, 10 zeniths, Ion Cannon and Fortress and other usual goodies. Now, what do I have. A good 2000+ ships, which is pretty neat amount, I think. Too bad only fighters and bombers are mkIII's and IV's. Others are I and II. Yeah, my upgrading priorities were a big fail, lol. Some starships (Flagships, light starships). Then I have my heroes, 2 Armored Warheads.
I first sent in the Armored Warheads as decoys, to draw the AI's from the command station and the nearby guard posts to chase them (works up to a certain distance before the AI's return to their posts). Initially my idea was to collect a bunch of those AI ships together and blast both nukes, which is enough to wipe out 800-1000 ships if I was lucky. However, I figured that the longer the AI's are chasing the nukes, the more I have time to move my fleet on the command station. So I left the warheads there, with about 2000 AI ships focusing on them, and only a few left at the station. Oh, and all the AI Spires in FRD mode went after those warheads, so all I had left to deal with were the Zeniths and some turrets. The Fortress was also out of Supply and thus not a threat, hehe.
Screen 2
I move on the command station and focus all my ships to fire on the force field at first, then get ready to fire on the command station. I was preparing for those 2000 AI's chasing the nukes on the other side of the command station to go after my fleet once I hit the command station, but delightfully enough, they decided that the stationary nukes were a bigger threat to them than 2000 of my ships firing on the command station, and kept shooting on those nukes. xD Needless to say, I was given a lot of free time to work my magic on the command station. The guards that were not chasing nukes were quite far away and didn't have enough time to reach me in time.
Screen 3
Boom! Proof that it worked. Of course, I didn't stick around to see those leftover Core and IV ships to pummel my fleet and considered it a victory. xP I'll probably see if I can hold them off sometime, to seal a definitive victory, but I'm quite sure that's just too much against my already weakened defenses.
Bottom line is, try using Armored Warheads as decoys. xP Worked on AI difficulty 6 at least. Heh. A bit lame, but at least "You Win".