I went to that first one last night, to try and unlock moduled. I landed right by each of the three guardian sites, drove everywhere in each site. Didn't find any floor thing or any way of starting a puzzle in any of them. I picked up relics and a guardian orb. I tried jettisoned relics on the glowy thing where the orb had Bern. That did nothing. I scanned glowing blue pillars, which got me some kind of data. No sentinels appeared anywhere ever. I went to a guardian tech broker today and found that I had unlocked precisely nothing. Can anyone post a picture of the floor thing and explain how to start the puzzle?