In my first 30 min I was overwhelmed with clues and not knowing they related to a mission, then when I tried to grab a NPC who had information it was the same key to activate the mission objective so it completed the mission while I was being shot at and lost that info.
I tried flying back to the cave base and couldnt find the entrance. Had to fast travel back inside.
It's very complex, far more than I expected at first glance, not a bad thing just needs proper tutorials to ease the player into it.