Marathon has some really difficult contracts to complete, and one of them involves scanning two Sparkleaf bioprinters in South Relay.
Finding South Relay isn’t a difficult task, as it’s a named location on the Perimeter map. However, the exact spots of the two bioprinters are hidden. For some inexplicable reason, their markers appear when you’re less than 20m away, making it a bigger challenge.
This guide should help to solve your problem by helping you find both of them.
How to find the Sparkleaf bioprinters in South Relay in Marathon
Completing the scans is one part of the Data Reconstruction contract that can appear randomly for you. This is certainly one of the more rewarding contracts, but it will take longer to complete. The first step of the contract requires you to find the two Sparkleaf bioprinters.

I have marked the locations of both bioprinters in the image above. However, it’s a rough estimation of where you need to be. Let’s find out the location of both. To find the first, we have to reach the exact spot where you can find the UESC comms antenna that has to be sabotaged as part of the introductory contracts.

The first bioprinter is in the room that holds the antenna on its roof. Once you reach the location, you’ll find a cyan colored room. Enter through the door, and move close to the other door. Don’t exit, and just wait for the quest marker to come up. The bioprinter is located to the left of the room.

To find the second one, move to the central area of the South Relay location. Once you’ve reached the marked spot (refer to the first image), you’ll find a door opening to your left (image below).

The door has a white container in front of it. Enter the room using the door, and you’ll find your second bioprinter. Once you enter through the door, the marker will show the exact location.

Interact with the bioprinters to complete the scan. This task is easier to complete if you have another player with the same contract. In that case, you don’t need to find the second Sparkleaf bioprinter. Scanning either one twice (once by you and the other by your teammate) gets the job done (for both of you).