Sextia waited for the others to finish introducing themselves before she began answering Jessica's questions. "In response to your first question, I honestly don't know. As for the Reliquary? Well Bralix is, as I said, a primitive world; however, there are a handful of pockets of 'civilization'. Most notably Jinra."
She typed a few keys and the holo-display changed to project an image of a small city. "Jinra was founded by the survivors of the battle in orbit. They carved out a position on one of the southern continents and dug in. Over the millennia they utilized what technology they had and made something of this gods forsaken rock. Jinra is home to the planet's only Starport and is a technologically adequate, if antiquated, local. The city has a supply of vessels capable of travelling the void, but they do not have the information or materials to build something that could traverse the Warp. According to all intel, and common sense, the Reliquary is located somewhere within Jinra." With a smirk Sextia added, "Just look for the building that looks the most important. It's probably there somewhere."
"As for anything being left of the fleet? I would say I doubt it. They've been pillaged countless times over the past few millennia, I can't imagine there's anything worthwhile left. That said, there are still active scavenger parties going through them; and once every couple of centuries they do find something not entirely useless." With a shrug she said, "If you have the time and want to loot them yourselves I suppose you could, but don't expect to find anything."
"Outside of Jinra, the world is basically feral. This is where you'll find the nomadic warrior tribes. They hunt big game and hold ritualistic tournaments every now and then. There's not much interaction between the tribes and Jinra, occasionally a tribe will find something that the city wants and they'll engage in trade. But for the most part the tribes distrust the people from the city and the people of Jinra find the tribes barbaric and beneath them."
"As for Astartes... I know the Word Bearers have made several trips to Jinra in the past, and it was in fact the Sons of Lorgar who discovered Bralix and the remains of the fleet in the first place. I would expect Jinra to have a familiarity with Astartes, but I can't speak about the tribes outside the city."