Guys, I've successfully finished the mission on PS4 yesterday. It's all good. Some tips:
1. Try it in a medium ship. In my case an Asp Scout. Fit it for exploration, meaning D modules, except an A FSD and top end scanners. Detailed Surface Scanner helps a lot. Advanced Scanner is not essential, but helps a lot too. Have at least 12T cargohold. A large ship will make maneuvering, planetary landing and landing overall problematic, specially in some maps. Unfit your hardpoints, there are no pirates on the route between the maps. But have a D shield, for the bumpy landings. Set your cargo to priority one. You don't want to autoeject artifacts because of heat damage while fuel scooping/distracted.
2. Do not dismiss your ship when in the Scarab. Ever. Dismiss is still bugged, at least on PS4, and you don't want to have to lose all your artifacts because your ship's AI went messy and suicided. There are no NPC pirates in the routes between the Ruin systems. If you're afraid of the ellusive Pirate CMDR, do it solo or PG.
3. Refuel the Scarab only when below 5% fuel. Unless you've picked a lot of Phosphorus and Sulphur. Then again, those planets are rocky, with those elements available after some surface roaming (time consuming).
4. Get used to (and use) your camera. It helps a lot with on site orientation. Just get used to its commands. Even after max distance from the SRV (250m), you can still zoom out for more width.
5. Do not shoot the artifacts too much when trying to free then from the rock clusters. They will eventually go poof. Use your Scarab to bump the rocks, it smashes them.
6. Follow OP map route between planets. Even if its Synuefe, then lots of others, then Synuefe again, it's really closer this way.
7. Sometimes when you scan an Obelisk with the wrong combo of Artifacts in your cargo, it will get "dead", even after a decoding notification. Check your messages from Nak Ram (w/e, can't remember his exact name) to see if it's a "wrong" notification or a "History/Language/Cultural etc" (the right one). If the Obelisk goes "dead" after a wrong scan, just reload instance (save+quit, log in again), it'll become a "live" Obelisk again.
8. Hit "CONFIRM" whenever switching Artifacts between the ship cargo and the SRV cargo. It's the main cause of "wrong" scans. Just be very careful to NOT HIT DISMISS SHIP.
9. If for whatever reason you lose one or two Artifacts (in my case, auto jettisoning from heat damage), keep in mind that each map has lots of Artifacts. You can actually get them on the next site, without having to go all the way back to the first map.
10. Check your SRV hull integrity frequently. Some maps are a mess to navigate. When below 25% hull, just Board Ship. It automatically repairs your Scarab and its modules. Just not the fuel, you'll still have to use Synthesis to refuel it.
11. Another great way to check your scans is opening the Transactions tab on the botton left menu and scrolling down the mission window to see the Rewards amount, it increases by one million each successful scan. One other way is checking the Messages window in the top left menu (Comms) after each scan and see if the type and number of the decodes matches OP's map reference. For example, after doing "H14", a Message with "History 14" will trigger.
AMA, I'll answer w/e I can.