Marathon: How to Finish Introducing Sekiguchi

Why this contract matters

The Introducing Sekiguchi contract in Marathon is one of those objectives that looks simple on paper but can become stressful once you are actually in the field. It sends you across Outpost, asks you to interact with two specific stations, and applies a negative effect in the middle of the run that makes every mistake more punishing. If you want to unlock the associated faction progress, you need to treat it like a focused mission rather than a casual loot run.

The good news is that the contract is fully manageable once you know the route. The two important locations are both inside distinct buildings, and the task order is straightforward: recover the sample, then move quickly to the scanner and finish the objective before the debuff becomes an issue. The harder part is simply understanding where each room sits within Outpost’s layout and how to move between them without getting lost or caught in unnecessary fights.

What you need before you start

Before trying this contract, make sure the relevant map is available to you. Outpost is not automatically open from the beginning, so you will need to reach the level requirement that unlocks it. In practice, that means you should not plan this mission too early in your progression. If you queue up before Outpost is available, you will not be able to complete the contract at all.

• Access to Outpost: unlocked through progression.
• Awareness of the route: both objectives are inside separate buildings.
• A safe mindset: the sample applies a harmful effect, so speed matters.

If you can bring a loadout that keeps you moving comfortably and lets you recover from brief combat encounters, that is a big advantage. You do not need a specialized build, but mobility and survivability are extremely helpful because the mission encourages movement between two distant points in a single run.

Understanding the mission flow

This contract has a clean structure: go to the first location, interact with the sample, then cross the map to the second location and complete the scan. The order is fixed, and the first action creates pressure by lowering your tolerance for delay. Once you pick up the sample, you are on a timer of sorts because the effect continues to chip away at your health. That means the smartest approach is to cut out all unnecessary detours.

Think of the mission as a two-stop circuit rather than a scavenger hunt. Your objective is not to clear enemies, fully explore the building, or maximize loot. It is to move efficiently from one marked room to another while staying alert to high-traffic areas and possible ambushes. The contract rewards certainty, not wandering.

Where to find the first objective

The first objective is located in the Flight Control area on the northern side of Outpost. Once you enter the building, head toward the second floor and follow the main corridor deeper into the structure. The goal is to stay oriented by using the building’s internal layout instead of trying to guess based on the map alone. Floor markings and corridor direction are your best reference points.

As you move through the hall, keep an eye out for a room near the south-running stretch of the corridor. The correct room is not the one you pass first; it is farther along, tucked behind a doorway on the right-hand side. When you get close enough, the objective marker should begin to stand out, making it easier to identify the exact spot.

Landmarks that help you stay on track

• A long corridor on the upper level of Flight Control
• A section with stacked panels near the wall
• A right-side doorway leading into a compact workshop-like room
• A highlighted storage unit or drawer containing the sample

Once you open the correct container, the Necrotic Sample is automatically injected. That is convenient, but it also means the clock starts immediately. The health penalty that follows is not severe enough to end the mission by itself, but it is serious enough to make sloppy movement risky. If you were planning to linger in the area, rethink that plan now.

Why the sample step changes your priorities

The sample is the mission’s main complication. Before collecting it, you can move around with normal caution. After collecting it, you are forced to balance exploration against time and incoming damage. This is the moment where many players lose momentum by trying to fight too much, loot too much, or recover too long before moving onward.

The best response is simple: leave the first site as soon as the objective completes. If enemies are nearby, avoid a prolonged fight unless it is absolutely necessary. If your shields or health are already in bad shape, move with even more discipline. The goal is to get to the second location quickly and finish the scanner step before the damage becomes a real threat.

How to reach the second objective efficiently

The second destination is Orientation on the northeast side of Outpost. Compared with the first objective, this location is easier to approach if you already know where the correct building cluster sits. You want the southeastern portion of the Orientation structure, specifically the upper level. That means the route is less about searching the whole area and more about entering the right side of the right building.

Once inside, move past the reception-style space and the nearby storage or locker area. The scanner is not hidden in a dramatic vault or a side room that requires special access. Instead, it sits near a white booth-like device close to a window. That makes visual recognition more useful than overthinking the route. If you see a clean, bright scanning station, you are likely close.

Signs that you are in the right room

To complete the step, move into the scanner and remain there until the process finishes. You do not need to perform a complicated interaction or manually operate a device. In most cases, simply positioning your Runner correctly is enough to trigger the objective. When the scan completes, the harmful effect from the sample is removed, which is a welcome relief after the sprint across the map.

Smart ways to reduce risk on the run

Even though the contract is short, it can still go wrong if you treat it like a sightseeing tour. Outpost can be dangerous, and the sample effect punishes hesitation. The most reliable strategy is to plan your route in advance and commit to it once the match begins. You want to know in broad terms where Flight Control is, where Orientation sits, and what the fastest path between them looks like.

• Move with purpose: do not stop for optional loot unless it is on your path.
• Avoid unnecessary firefights: conserve resources for survival, not prolonged combat.
• Use landmarks instead of guesswork: hallways, room types, and floor changes matter.
• Finish the second objective quickly: once scanned, the debuff ends and your run becomes safer.

If you are playing with a squad, decide ahead of time who is leading the route. If you are solo, slow down only enough to confirm the correct room, then push forward again. The fewer pauses you make after collecting the sample, the better your odds of finishing cleanly.

What happens after the scan

Once the shell scan is complete, the contract is effectively done. You do not need to extract immediately to claim progress for the objective itself, which is useful because it gives you some flexibility after the hardest part is over. At that point, you can either continue the match, pivot to another goal, or head for extraction if you prefer to play it safe.

Keep in mind that extraction on Outpost may still be risky depending on the match state. If you have enough resources and do not want to gamble after completing the mission, it is often wise to leave sooner rather than later. On the other hand, if the area around the second objective is quiet, you may choose to do a little more looting before you depart.

Common mistakes players make

Most failed attempts do not come from the objective itself. They happen because players spend too long searching, linger after the sample pickup, or assume the second objective is in a random utility room rather than a clearly defined scanner space. Another common mistake is entering the wrong side of the building and then trying to brute-force the route instead of backing out and re-centering on the correct floor and wing.

• Searching the wrong room in Flight Control
• Overcommitting to fights after the debuff starts
• Running to the wrong side of Orientation
• Forgetting that the scanner is on the second floor

If you avoid those errors, the contract becomes much more manageable. Accuracy matters more than raw combat ability here.

Quick mission checklist

Use this compact checklist if you want a fast reminder before dropping in:

• Confirm Outpost is available to your account.
• Head to Flight Control in the northern part of the map.
• Reach the second floor and find the workshop room off the south-running corridor.
• Collect the sample from the marked storage unit.
• Immediately move to Orientation on the northeast side of Outpost.
• Go to the upper floor of the southeastern section.
• Enter the scanner booth and wait for completion.
• Decide whether to extract or continue your run.

Frequently asked questions

Do I need to extract to finish the contract?

No. The contract completes after the scan finishes. Extraction is only necessary if you want to safely leave the map with whatever else you have collected.

Is the sample effect dangerous?

It is not instantly lethal, but it is punishing enough to matter. The damage-over-time pressure is why moving quickly after pickup is so important.

Can I complete the mission while exploring Outpost?

You can, but it is not recommended. The contract is easiest when you treat it as a direct route between the two objectives.

What is the hardest part of the quest?

For most players, the hardest part is finding the exact rooms quickly, especially the scanner location in Orientation. Once you recognize the landmarks, the contract becomes much more straightforward.

Final thoughts

Introducing Sekiguchi is a classic example of a mission that becomes much easier once the map knowledge clicks. The route is short, but the run demands confidence: know where the first room is, pick up the sample, and head straight for the scanner before the damage effect turns into a problem. If you enter Outpost prepared and keep your attention on the correct floors and wings, the contract is entirely manageable.

Instead of thinking of it as a puzzle, think of it as a timed movement challenge. The first objective tests whether you can navigate Flight Control efficiently, and the second checks whether you can finish under pressure in Orientation. Once both are done, the rest of the match is yours to handle however you prefer.