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Arknights: Endfield
Insider Threat Mission Guide
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Insider Threat is a Side Mission in Arknights: Endfield. See how to unlock the quest, how to solve the Originium Circuitry Puzzle and its full walkthrough, and all mission rewards in this guide!
How to Unlock Insider Threat
Complete OD Project: Reconstruction HQ I
Insider Threat unlocks automatically after completing OD Project: Reconstruction HQ I which requires you to raise your Outpost Prosperity level to the current limit.
Insider Threat Walkthrough
- Go to the Originium Powerplant
- Talk to Dmitry
- Restore the Data of the Terminal
- Find Yulia
- Talk to Georgi
- Follow the Footprints
- Go to the Bridge Approach Camp
- Scan the Place to Look for Missing Items
- Talk to Georgi
- Proceed to Investigate Artyom
- Look for Artyom at the Transfer Station
- Defeat the Landbreakers
- Talk to Angro and Shawna
- Read the Message from Angro
- Meet Up with Angro
- Go to the Site of the Negotiations
- Return to the Originium Power Plant
- Talk to Shawna
Go to the Originium Powerplant
After reading the message you received from Angro, make your way to the Originium Powerplant which is located northeast of the Plateau Trunkway in Power Plateau.
Teleport to the nearby TP Link and approach Angro and Shawna for a cutscene.
Power Plateau Interactive Map and Locations
Talk to Dmitry
Fast travel to the TP Link in Plateau Trunkway and head south to speak to Dmitry who will ask you to follow him to another locaiton where you can speak more privately and ask help restoring some data.
Restore the Data of the Terminal
Head slightly northeast of the TP Link and interact with the terminal to unlock and repair it.
How to Solve the Originium Circuitry Puzzle
Arrange the pieces like the image above to solve the Originium Circuitry Puzzle then speak to Dmitry.
Find Yulia
Head back to the TP Link in Plateau Trunkway and speak to Yulia. Speak to her and Dmitry for a short cutscene.
Talk to Georgi
Make your way to Georgi who is located just northwest of the Plateau Trunkway near the Old Dorms. Approach the two workers and finish their dialogue , then follow Georgi inside the Originium Powerplant for another cutscene.
Follow the Footprints
Use your scanner in the area and follow the footprints which will lead you to a terminal near the wall with the U.W.S.T. logo. Interact with the terminal to repair it.
How to Solve the Originium Circuitry Puzzle
Arrange the pieces like the image above to solve the Originium Circuitry Puzzle, then interact with the terminal again to read the file.
Go to the Bridge Approach Camp
Make your way to the Bridge Approach Camp to the west of the United Parking Lot. There are a few enemies in this area so make sure to get rid of them so you can safely scan the area.
Scan the Place to Look for Missing Items
Head inside the nearby shack where you can find a large UWST Box inside. Face the box then use your scanner to locate the missing item and Georgi will contact you.
Talk to Georgi
Return to Georgi where you first spoke to him northwest of the Plateau Trunkway near the Old Dorms, and speak to him for a cutscene.
Proceed to Investigate Artyom
Follow the road south then west from Georgi's location to reach a warehouse. Approach the two workers inside for a cutscene where they'll mention that Artyom has been seen in a nearby abandoned transfer station.
Look for Artyom at the Transfer Station
The abandoned transfer station is located northwest of the Evacuation Center. Fast traverl to the nearby TP Link and follow the road northwest to the transfer station to reach Artyom.
Defeat the Landbreakers
You'll need to defeat the the two Lv. 70 Landbreakers here to save Artyom. They're not particularly difficult if you've leveled your team sufficiently, so quickly dispatch them.
A cutscene will play after defeating both Landbreakers where you'll confront Artyom and bring him to Angro and Shawna for questioning.
Talk to Angro and Shawna
Make your way back to the Originium Power Plant and head inside the facility to talk to Angro and Shawna to give your report.
The quest will end at this point and you'll need to wait one real world day to get an update from Angro and Shawna regarding their findings.
Read the Message from Angro
After waiting a day, you'll receive an urgent message from Angro on your Baker.
Meet Up with Angro
Head back inside the Originium Power Plant and approach the rallying group of workers for a cutscene, then follow Angro and Shawna to the monitoring room for another cutscene where they'll ask you to help repair the terminal.
How to Solve the Originium Circuitry Puzzle
Arrange the pieces like the image above to solve the Originium Circuitry Puzzle and read the document, then speak to Angro about your findings.
Go to the Site of the Negotiations
Go to the site of the negotiations north of the United Parking Lot at the Old Dorms for a cutscene. After the cutscene, you'll need to defeat two Tunneling Nildwyrm to save Georgi.
Once the Tunneling Nildwyrms are defeated, a cutscene will play where you confront the Alert Woman.
Return to the Originium Power Plant
Make your way back to the Originium Power Plant and head inside to the control room and speak with Angro and Arytom for a cutscene.
Shawna will then send you a message on your Barker and ask you to meet up at the Shattered Fringe.
Talk to Shawna
Shawna is located north of the Power Plant Comm Station and you can fast travel at the TP Link near the Origin Lodespring.
Speak to Shawna for a cutscene, which also ends the quest.
Insider Threat Quest Rewards
Total Item Rewards
| Total Quest Rewards |
 T-Creds x6950 |
 Protoprism x12 |
 Oroberyl x100 |
|---|---|---|
 Arms INSP Kit x16 |
||
You also receive 400 Operational EXP for completing this quest.
Insider Threat Quest Information
Insider Threat Quest Details
| Mission Type | Side Mission |
|---|---|
| Location | Valley IV, Power Plateau |
Insider Threat is a Side Mission that's located in Power Plateau and unlocks after completing OD Project: Reconstruction HQ I.
Arknights: Endfield Related Guides
All Side Missions in Valley IV
| Valley IV Side Missions | ||
|---|---|---|
| Invisible Glyphs - Discovery | Invisible Glyphs - Investigation | Invisible Glyphs - Revelation |
| Base Revisited | Rumors About Tech | Cog in the Wheel |
| Visitor from the Band I | Insider Threat | Visitor from the Band II |
| Quarry Rescue | Fix the Super Crane | Deep Management Post Rescue |
| Cost of Hope I | Cost of Hope II | Morale Booster |
List of All Side Missions
| All Side Missions | ||
|---|---|---|
| Base Revisited | Visitor from the Band II | Insider Threat |
| Visitor from the Band I | Cog in the Wheel | Rumors About Tech |
| Melody of the Valley | Invisible Glyphs - Revelation | Invisible Glyphs - Investigation |
| Invisible Glyphs - Discovery | All That Rises Must Converge | Three Little Categories |
| Quarry Rescue | Fix the Super Crane | Deep Management Post Rescue |
| Cost of Hope I | Cost of Hope II | Morale Booster |
Author
Insider Threat Mission Guide
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Landbreaker level is determined by Exploration Level, so level 3 would make them level 50. Just wanted to share that since not everyone does those quests right away.