Control Resonant Underpass Accounts Locations

The 15 Underpass Accounts in Control Resonant are the logs of an FBC expedition that never came back. You collect every one during Recursions and Iterations, the main mission below the Sinkhole. Twelve are on the mission’s path, one needs Shift, and two of Dr. Grist’s logs only appear later in the quest. Players who remember the Control 2 announcement can start with the Underpass map of the tunnel down from the Sinkhole, where the first log is.

Control Resonant Underpass Accounts Collectible guide location screenshot

Map Master’s Vlad Susanu read all fifteen in the dark below the Sinkhole, and the Control Resonant Archive and zone maps link the rest of Manhattan’s sets. Read in number order, this one becomes a single story, from a confident first log to the last survivor’s notes.

Who Wrote the Underpass Accounts: Schultz, Grist, Ayad, and Another Dylan

Agent Schultz writes the first five, from the team’s plan in Here Be Dragons to the glow in Strange Lights. Dr. Grist has three, Malik Ayad two, and Dr. Steinbeck one about friction in the team, while Final Survivor, Waste Disposal, and the Scrawled Note come from other members of the expedition.

One log isn’t from the expedition at all. I Don’t Mind Dying was left by a Dylan from another timeline, beside his body, and the Dylan Faden case files give context for the version you play. Grist’s logs run to her final words, so she’s the thread to follow if you only read part of the set.

Underpass Accounts on the Way to the Research Sites

Schultz’s five mark the route in. The first is in the tunnel down from the Sinkhole, and the next four follow the northern Orientation Point, the stone slab with the Underpass Vendor stop, a pillar south of it, and the roof of the Spire, so most of them are high up rather than on the ground.

Blazing A Trail is the one that needs Shift, the wall-walking power from The Incursion Fault. If you reach that pillar without it, mark the spot and come back later. The other fourteen need nothing beyond the quest itself, so Shift is the only power this set ever asks for.

Underpass Accounts at the Research Sites

The Research Sites contain the middle of the set: three logs at the western site, three at the southern site, and two at the fourth, one in its large office and I Don’t Mind Dying in the passage beyond it. Ayad’s Transmission, about failing to reach Pope, is at the western site, where the three Power Cores near Ayad’s office restore the lights.

Grist is studying variant timelines of the expedition, so camps and offices can look different between iterations. If a room doesn’t match what you expect, keep going with the quest and check it again once the next iteration loads, rather than searching the same room twice.

Grist’s Two Story-Locked Underpass Accounts

Grist Hiss Recording and Grist’s Final Words don’t exist until the quest reaches them. The recording appears beside her body north of the Transmission Tower once Recursions and Iterations moves forward, and her final words appear when you place the Final Probe Relay.

If either is missing, push the quest on instead of searching harder. You also meet Grist alive three times during the quest, and the NPC stops for Dr. Grist and Ayad show where, which helps place her logs in the story’s order.

Finishing the Underpass Accounts: Rewards and Missables

Recursions and Iterations pays a Living Shard and the Prime Candidate Restraint Suit, so the set, a shard from the Living Shard quest rewards, and one of the Control Resonant outfit pieces from quests all come from the same mission. Since every log is on that mission’s route, one careful run through it can finish the set.

The credits don’t lock any log away, Grist’s two included, though reading them mid-story makes the ending land harder. The Subway Maintenance recordings under Central follow another FBC crew’s last days, a shorter set with the same kind of story.

Name	Map Location	Details
Here Be DragonsUnderpass Here Be Dragons	Underpass	Here Be Dragons is the first collectible in the Underpass Accounts Set. The document reveals how Agent Schultz lays out the team’s intention to explore the Underpass. The collectible is found on a Blue Crate on the right side of the tunnel connecting the Sinkhole and the Underpass. You'll explore the tunnel during the Recursions and Iterations quest.
In Case Things Go WrongUnderpass In Case Things Go Wrong	Underpass	In Case Things Go Wrong is the second document in the Underpass Accounts set. It is a note by Agent Schultz, left behind for any colleagues who might follow his team into the Underpass. Look for it next to a typewriter on a table by the northern Orientation Point in the Underpass area. The table is on the roof of a stone pillar.
The Sheer Scale Of The UnderpassUnderpass The Sheer Scale Of The Underpass	Underpass	The Sheer Scale Of The Underpass is the third document collectible in the Underpass Accounts Set. Look for it next to the Orientation Point halfway up the northern stone slab where you find the Underpass Vendor. The document reveals how Agent Schultz grapples with the sheer scale of the Underpass.
Blazing A TrailUnderpass Blazing A Trail	Underpass	Blazing A Trail is another Underpass Accounts Set collectible found in the Underpass. It is on the roof of the pillar south of the vendor. To reach it, you must use the Shift Ability. In the document, Agent Schultz discusses the FBC’s future exploration of the Underpass.
Strange LightsUnderpass Strange Lights	Underpass	The Strange Lights in the Underpass Accounts set of collectibles is found on the roof of the Spire in the Underpass. Look for it by a small chair on the southern side of the large pillar. The document reveals how Agent Schultz notes the appearance of strange lights in the distance.
Ayad TransmissionUnderpass Ayad Transmission	Underpass	Ayad's Transmission is the sixth entry in the Underpass Accounts collection, assuming you have followed the order on our Underpass interactive map. It is found on a desk by the wall of the western Research Site office. The audio log reveals that Ayad encountered difficulties when attempting to reach Pope.
Frequent DisagreementsUnderpass Frequent Disagreements	Underpass	The Frequent Disagreements entry in the Underpass Accounts Set is a document in which Dr. Steinbeck notes increasing friction within the team. It is found on a desk by the door in the eastern office of the southern Underpass Research Site.
Note To SelfUnderpass Note To Self	Underpass	The Note To Self document in the Underpass Accounts set of collectibles is found on the concrete railing behind the scientists in the southern Underpass Research Station. A note was written by Dr. Melanie Grist for herself.
Everybody’s So Damn TiredUnderpass Everybody’s So Damn Tired	Underpass	The Everybody’s So Damn Tired collectible in the Underpass Accounts set is found on a table near the scientists in the southern Underpass Research Station. In the document, Malik Ayad discusses the engineering challenges of working in the Underpass.
Final SurvivorUnderpass Final Survivor	Underpass	The Final Survivor is another Archive entry in the Underpass Accounts. The document includes reflections from the last surviving member of the expedition team. You can retrieve it from the blue box near the Orientation Point of the western Underpass Research Site.
Waste DisposalUnderpass Waste Disposal	Underpass	Waste Disposal is a document from the Underpass Accounts set of collectibles. It is found near the waste bags in the back of the western Underpass Research Site office. Look for it on the ground on top of the stairs. The document includes evidence of a heated internal debate on FBC regulations.
Grist Hiss RecordingUnderpass Grist Hiss Recording	Underpass	The Grist Hiss Recording entry in the Underpass Accounts set of collectibles is a timed collectible that only spawns once you progress the Recursions and Iterations main quest. Specifically, you'll be able to find it north of the Transmission Tower, next to Dr. Grist's body. The audio reveals that Dr. Grist encounters the Hiss... and something else.
Scrawled NoteUnderpass Scrawled Note	Underpass	The Scrawled Note is the 13th collectible in the Underpass Accounts Set. It is a note from one of the expedition team members, and you can find it on the table in the large office of the fourth Underpass Research Site.
I Don’t Mind DyingUnderpass I Don’t Mind Dying	Underpass	I Don’t Mind Dying is a note from another timeline’s Dylan and a collectible in the Underpass Accounts Set. It is found next to Dylan's body in the passage past the fourth Underpass Research Site.
Grist's Final WordsUnderpass Grist's Final Words	Underpass	Grist's Final Words is the last collectible in the Underpass Accounts set. It is found next to Grist's body in the Underpass Area. You'll discover it while playing the Recursions and Iterations Quest when you have to place the Final Probe Relay. It reveals how Dr. Grist goes down fighting to make sure the FBC gets all of the data.

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