I was a bit foolish, and took a world without scouting past it---and then found out it was next to the core. So now I have a core world irrevocably on alert, and I'm trying to figure out what to do with it. I'm playing a 30-planet map, so I haven't got a lot of breathing room. And as a matter of fact, I'm an hour and twenty minutes in and only have two Mark II unlocks so far, tho I have about 12,000 knowledge saved up. Anyway, I can see what X meant calling "a cage match with the AI" on the Wiki.
What would people do with this? First, I guess, I'll go pot-shot the command center on a world with a lot of wormholes to spread out reinforcements, but I'm still nervous about leaving a core world to build up right on my doorstep. I'm thinking of taking a few unlocks and going in with a ton of neinzul and a golem or two, hopefully killing enough guard posts to prevent a big buildup while leaving the command station so I don't get a homeworld on alert. It seems just feasible, with clever tactics. But that would still put the homeworld on alert for a while, and even with golems I don't think I have the economy to go straight in there. Still, I guess it's the right path; 30 planets and Neinzul bonus ships means you're going for a speed game, right?
While I'm on the topic, can I remark on how ridiculously tricked-out a 30-planet map with all expansions can get? I've just realized I shouldn't have taken this last world, with "only" an ARS, a Zenith Beam fabricator, Mark III and IV ion cannons, a Zenith reserve, and a broken armored golem; next to the other core I could have got an ARS, two fabricators, a cursed golem, and a data center. Or on the other side of this one four fabricators and a botnet golem. I reckon I'm going to need a lot of that pretty soon, but it's pretty novel seeing worlds like that.
Sorry if I end up repeating someone, just didnt quite feel reading through the entire topic.
You have an Armored Golem? Have your fleet revolve around it at all times, when I mention "fleet" I mean "fleet with Armored Golem".
You seem to have Golems on » find a Botnet Golem. Create a legion of zombies and set your redirection rally posts to patrol the core(/home)planet.
They take the beating while your "fleet" neuters the planet, start with the CC, asap*, followed by any reinforcing gates.
Cant find a Botnet Golem or cant take it without losing the game » Do you have Spirecraft turned on?
Yes » Penetrators and Martyrs. Use the Martyrs to strip the planet of any buildup. Get your "fleet" on the enemy planet, kill the tachion guards and bring in the Penetrators for a speedy removal of all reinforcing gates, again starting with the CC, asap**.
No » You lose .... just kidding

Use transport to draw the AI away as much as possible, depending on how posts are scattered you could now send in the "fleet" for a very short visit, you could just as well skip it for now. When enough AI are drawn away from the gate/posts you send in a team of transports*, add some cannonfodder if you are keen on keeping all of your starships alive. Do "1 post assissantion" raids with the taskforce, the transports can nicelly autorepair and you minimize the number of freed ships with every attack. With a couple of raids you can usually grind the planet down to "fleet"manageble size.
* Get a set of 4-6 transports and load them with caps of bomber, raid, scout-starships, trow in leech-starships or any other ship that can stand its own or you dont mind losing by the cap, even if only in an effort to keep the bomber and raid-starships alive. Use it to take entire AI-planets. Sometimes you need to distract it a bit before it works, which can be the case with heavilly reinfored planets.
** Similair as with *, but now you have Spirecraft turned on. Get some SC-Jumpships, the highest mark possible. The higher the mark the easier this tactic becomes.
Load 1 Jumpship with the most specialised taskforce you can munster for the target at hand. Send it over to the enemy planet(now you could pauze the game), in a split second send the Jumpship to the target while you press the key(set it if you havent already) to unload the transport, it will unload on arrival (you may need to learn to time this a bit), where you make the taskforce kill the post/CC and nothing else, get back into the Jumpship and back home.
When you get the hang of this you can bring a lot of instant hurting to the AI, which they will attack you for, so dont get too overexited once you get the hang of this, it can hurt a lot if you neuter entire alerted core-planets in 1 raid