Highlights
- The Biosample Analyser objective is found inside the West Quarantine facility, which is hidden inside a cave.
- The Bio Sample Analyser is located upstairs inside a small yellow building in the center section of the facility.
- After destroying the analyser, players must collect the bio sample before leaving the building.
To complete the Destroy the Biosample Analyser objective in Marathon, you will need to travel to the West Quarantine facility and complete a few steps inside the area. The location is hidden inside a cave and is guarded by many NPC enemies. Your task is to find the Biosample Analyser, destroy it, collect the sample, and then deliver it to a Decon Station. This guide will tell you how to destroy the Biosample Analyser inside West Quarantine.
How to Destroy the Biosample Analyser inside West Quarantine


Go to the Quarantine area on the map. The facility is found inside a cave, so you will need to move into the cave to reach the entrance. Move toward the middle of the facility. You will see different pods, wires, and lab equipment scattered around. This area is usually guarded by NPC enemies, so you have two options:
- Sneak through quietly if you are playing solo
- Clear out the enemies if you are playing with a team

There is also an upper level in this facility, where you will find the main objective. When you reach the centre section, look for a small yellow building. Be careful while approaching this area because it may have traps. Once you reach the yellow building:
- Go upstairs using the staircase outside or nearby tunnels.
- Head to the back table inside the room.
- You will see the Bio Sample Analyser lab equipment.
- Destroy the equipment to complete the first part of the objective.
After destroying the analyser, the game will ask you to collect the bio sample. Pick it up before leaving the area.
Deposit the Sample at a Decon Station
After collecting the sample, your final objective is to deliver it to a Decon station. Mark the nearest Decon location on your map and make your way there. When you arrive:
- Open the Decon container.
- Move the sample from your inventory.
- Drop it into the container.
Once the sample is deposited, the Priority Contract will be complete.
FAQs
- Do you need to defeat all enemies in the Quarantine facility?
- No, defeating all enemies is not required. You can sneak past NPCs if you are playing solo, or clear the area with your team.
- Where do you take the bio sample after collecting it?
- You need to deliver the sample to the nearest Decon Station.
- What gear should you bring for this mission?
- Bring mid-tier gear, since the area is dangerous and may also have traps or other players nearby.
