Note: I've written a guide for Guardian Vessel (Fighter) Blueprints here; Guardian Weapon blueprints here.
Greetings, Commander!
Let's talk about the Guardian Module Blueprints (
now called Guardian Module Blueprint Segments). Perhaps you're interested in the
Guardian FSD booster for extending the jump range of your ship? Or perhaps the
Guardian Shield Reinforcement to help turn that hull tank into a shield tank? Maybe you're interested in the of-dubious-usefulness
Guardian Hybrid Power Distributor? This guide should help you comfortably get through this.
First off, let's discuss expectations. You'll be jumping about 800ly out of the bubble to a Guardian site in
Synuefe NL-N C23-4 and landing on Planet B3. There's a "Guardian Structure" Nav Marker that you can spot from 1000 ls away to guide you in. You'll land, and then you'll navigate the site in your SRV, and, while fighting roughly twelve guardian sentinels (not all at the same time!), you'll "charge" six pylons, which will then allow you to drop an Ancient Relic, which are available at the site, into a hole and thereby release the Glowing Golf Ball Of Module-ness, which you can scan for the reward of one blueprint. All the Guardian modules require one blueprint each, so to unlock all six of them, you'll need to perform this task six times, logging out and logging in before each run. You'll also need to collect other necessary materials during all of this!