Marathon Data Reconstruction Quest Guide

Data Reconstruction is a multi-step contract in Marathon's New Caloric faction progression path. It spans three separate parts: two of which take place on Perimeter, with Part 2 dragging you over to Dire Marsh. The Data Reconstruction quest is sequential, meaning you can't skip ahead no matter how much you'd like to.

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Part 1: Perimeter

⚠️  This is NOT a single-objective sprint. Part 1 of the Data Reconstruction quest requires visiting three separate locations across Perimeter in order. Yes, in order. The game will make this very clear by locking objectives until you do things correctly, like a passive-aggressive game mechanic.

Objectives Overview

• Scan two Sparkle Leaf Bio Printers in South Relay
• Scan two Fungal Bio Printers in Overflow
• Download the Agricultural Report in North Relay

Step 1: South Relay (Southeast Perimeter)

South Relay sits in the southeastern portion of Perimeter. You're looking for two Sparkle Leaf Bio Printers: because apparently the future still runs on plants.

• Bio Printer #1: In the most northwest building of South Relay. It's primarily aqua on the outside and green on the inside. Hard to miss, assuming you can identify the color 'aqua' under stress.
• Bio Printer #2: In the large main orange-and-white building on the east side of South Relay. Scan it. Congratulations, you did half of the first step.

Once both Sparkle Leaf Bio Printers are scanned, the Overflow objective will unlock. Check your active contract menu if you're skeptical: the lock icon will disappear.

Step 2: Overflow (Southwest Perimeter)

Head to Overflow, located in the southwest corner of the map. You need two Fungal Bio Printers for the Data Reconstruction quest to advance.

• Fungal Bio Printer #1: Second floor, top shelf, east side of the main building. It's up there. Climb.
• Fungal Bio Printer #2: Cross the bridge to the south side of the building. It's on top of a chest of drawers, because someone thought that was a logical place to put lab equipment.

After scanning both Fungal Bio Printers, open your contract tracker. The lock on the final objective should be gone. If it's not, you missed one.

Step 3: North Relay (Northwest Perimeter)

North Relay is in the northwest section of Perimeter. Your target is the Agricultural Report terminal: but you can't just walk up and grab it, because the power is off. Classic.

• Enter the northmost building from the western doorway.
• Find the power switch downstairs and flip it on.
• Head back upstairs to the south side of the building.
• Interact with the red terminal on the desk to download the Agricultural Report.

Confirm the download completed in your contract tracker BEFORE heading to Xfil. Extracting with an incomplete Data Reconstruction quest is a very fixable mistake that you will absolutely feel bad about.

 ℹ️  Turn-in: Return to the Faction screen, navigate to New Caloric, and turn in the contract to unlock Part 2 of Data Reconstruction.

Part 2: Dire Marsh

Part 2 of the Data Reconstruction quest moves entirely to Dire Marsh. Here's the actually good news: you don't need to extract successfully for progress to count. Objectives register on completion, not on survival. This is the most forgiving part of the Data Reconstruction quest line, which is saying something.

Objectives Overview

• Download the Harvest Logs at Algae Ponds
• Hack three Data Repositories at AI Uplink

Step 1: Algae Ponds (Center-Left, Near the Anomaly)

Algae Ponds is located roughly in the middle of Dire Marsh, slightly left of the anomaly. Head to the top floor of the main building.

• Find the red terminal near the windows in the northernmost room.
• Interact with it to download the Harvest Logs.

ℹ️  Can't find the terminal? Move through the building slowly: a small green quest marker will appear when you're close. It's proximity-based, so you genuinely have to be nearby before it shows. Welcome to Marathon.

Step 2: AI Uplink (Southeast of Algae Ponds)

Head southeast from Algae Ponds to AI Uplink. You'll recognize it by the bridge structure held up by large columns.

• Find the three small screens on those columns: these are the Data Repositories.
• Interact with all three screens. Order doesn't matter. Just hit all three.

Once all three Data Repositories are hacked, Part 2 of the Data Reconstruction quest is complete. Again: you do not need to Xfil. Just finish the objectives and your progress will register automatically.

ℹ️  Turn-in: Faction screen → New Caloric → turn in the contract to unlock Part 3.

Part 3: Perimeter (Again, Yes)

⚠️  CRITICAL: Part 3 of the Data Reconstruction quest must be completed in a SINGLE RUN and you must successfully Xfil at the end. If you die before extracting, you restart the entire sequence. Bring good gear. This is not the time to test your budget loadout.

Objectives Overview

• Hack two Data Repositories at North Relay OR South Relay
• Download the AI Maintenance Protocol at Holler
• Successfully Xfil

Step 1: Hack Two Data Repositories (North or South Relay)

You need a total of two Data Repository hacks to advance Part 3 of the Data Reconstruction quest. You can do both at one location or split between the two: your choice.

North Relay (Northwest Perimeter):

• Repository #1: On an inner green column, northeast side of North Relay: look for the cluster of green columns.
• Repository #2: South side, amongst the dark blue columns.

South Relay (Southeast Perimeter):

• Repository #1: Aqua repository in the northwest corner of the column cluster.
• Repository #2: Orange repository in the southeast corner.

Once two repositories are hacked, your next Data Reconstruction objective will unlock. Head to Holler.

Step 2: Holler (Western Perimeter)

⚠️  Holler is one of the best loot spots on Perimeter. Expect other players. If your main goal is finishing the Data Reconstruction quest, get in, get the download, and get out. Do not let shiny loot convince you to stay.

• Holler is the large grounded ship structure on the western side of the map.
• Head to the second floor, southwest side of the ship, near the locked observation room.
• Interact with the terminal to download the AI Maintenance Protocol.

USEC reinforcements tend to drop into Holler regularly. Once you have the AI Maintenance Protocol downloaded, do not linger. Leave immediately and make your way to Xfil.

Step 3: Xfil Successfully

This is it. The final step of the entire Data Reconstruction quest line. Do not die. Extract successfully and the contract will mark as complete.

ℹ️  Turn-in: Faction screen → New Caloric → turn in the contract. You've just completed all three parts of the Data Reconstruction quest. Take a moment to feel good about yourself.