If you want to finish the Roundtrip 2.0 mission, you need to find all 3 Javelin Blueprints in Revenge of the Savage Planet. These blueprints let you fix your ship and get ready to leave for home.
You need all 3 Javelin Blueprints to repair your ship. Each blueprint comes from a different crashed Javelin on a different planet. You must scan each one to unlock a new part for your 3D printer. After you print all five parts, your ship will be ready for launch.
Xephyr: The First Javelin Blueprint

You can find the first Javelin Blueprint on the desert planet called Xephyr. Head to the Crystal Pillars region and look for the Great Oasis teleporter. From there, walk northwest. You will see a crashed ship stuck between two tall rock pillars. Walk up and scan the wreck. The scan will unlock a new part for your ship’s repairs
Zenithian Rift: The Second Blueprint

The second Javelin blueprint is located in the Summit of Ruin area on Zenithian Rift. Go to the Summit of Ruin area. You will need to climb up to the Peaks section, where you find a group of Toxwin enemies. Look for a sloping path that leads down. Stay to the left as you slide down. Soon, you will spot a wall that you can break. Behind this wall, you will find the crashed Javelin. Scan this wreck to unlock another blueprint for your ship.
Quasadron IX: The Final Javelin Blueprint

The last javelin blueprint is on the icy planet Quasadron IX. Go to the Savannah Lake area. Look for a tree with a face near a body of water. Dive into the water and swim down. The third crashed Javelin sits at the bottom of the lake. Scan the wreck to get the final blueprint you need.
What to do after finding All 3 Javelin Blueprints in Revenge of the Savage Planet
Once you have all 3 Javelin Blueprints, head back to your base. Use your 3D printer to craft the three new ship parts. You will already have the first two parts unlocked. Now, with all five parts, you can finish the repairs on your Javelin. Make sure you have enough resources, since some parts need a lot of aluminum, carbon, and silicon.
When the ship is fixed, you can launch it and finish the mission. This also unlocks the “Hasta La Vista” achievement. You can keep playing after this, so you will not miss out on other things in the game
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