What is CONTROL Resonant Into the Sinkhole?

Into the Sinkhole is a Contain the Crisis main mission after Arish’s Briefing. Place probe relays in the Sinkhole resonance site. Guides list a Living Shard reward.

Where is Matthews in CONTROL Resonant?

Matthews is in the Security Station at the southern Central Field Office. Reporting him to Zoe is a flavor choice that does not change the ending per guides.

CONTROL Resonant Into the Sinkhole Guide

Quick answer: CONTROL Resonant Into the Sinkhole is a main Contain the Crisis mission (Central Field Office start after Arish’s Briefing). Place / recover probe relays in the Sinkhole resonance site. Guide reward: 1× Living Shard. Update 1.4.0 fixed a rare NG+ miniboss spawn here.

How to start Into the Sinkhole

Finish Arish’s Briefing at the Field Office.
Open Into the Sinkhole from Contain the Crisis — follow the Sinkhole marker in Central / Evac approach as your log dictates.
Clear Hiss / environmental gates that blocked the FBC probe team; harness the Pattern resonance objective.

Matthews (related Central search)

CONTROL Resonant Matthews: after Evacuation Measures beats, Zoe may call about her friend. Find him in the Security Station (south Field Office, Clearance). Dialogue choice to report desertion to Zoe is flavor — guides say it does not change the ending; it nudges West Incursion exploration.

Related: Missions · What to do first · Update 1.4.0