EVE New Citizens Q&A

From what i understand you have multiple windows of vulnerability for citadels. 1st vulnerability phase you entosis link it and that triggers the first reinforcement phase. Then second phase you shoot it until its shield reach 0? Or can you entosis link it to the 2nd reinforcement phase? which in the 3rd phase of vulnerability you shoot it until it reaches 0 structure or capture it? Is this correct and how does capturing it work?

No, that is wrong. The plan has changed many times now and many of the devblogs are out of date.

First, you cannot capture a structure, only explode it. Second, they scrapped the entosis mechanic and that module is not used at all for citadels. You need to shoot them - to do it in the 30 minute minimum time you need about 4000 DPS for a medium, and 12000 DPS for the large or you can bring less DPS and it will take longer. There are three reinforcement timers, but you can only start shooting during the vulnerability windows which are defined by the owner (3 hours a week for a medium and 6 for a large) and in highsec you need to declare war.

If you manage the first reinforce, the next one begins 24 hours after you fire the first shot and lasts 15 minutes. If you start shooting during that time you can keep shooting until you reinforce it but if you stop or are stopped before you finish reinforcing, the citadel completely repairs. If you succeed, the third and last reinforcement starts 7 days (2 days in a wormhole) after the first shot and lasts 15 minutes like the 2nd reinforcement. If you succeed here the citadel explodes and you get a drop of some minerals and salvage but the contents are transported by the asset safety mechanic.

TL;DR No entosis, just shooting. No capturing, only exploding.

I tend to lean in the direction that any questions about sov warfare belong more in Warfare and Tactics than it does NC Q&A.