I dropped into the Outpost and found the center sealed—three roads, three dead ends, and an elevator that refused to answer. I could hear something humming under the floor, a faint mechanical heartbeat that promised trouble the moment the doors opened. You can feel that sting of opportunity; you just need the right sequence to force the door open.
How to unlock and access Pinwheel Base in Marathon
A single hub sits at the map’s exact center, circled by three approaches and a stubborn barrier that keeps most runs shallow. I’ll walk you through the three reliable ways to gain access, what each method costs you in time and risk, and how to manage the enemies that spawn the moment you trigger entry.
Short version: there are three practical routes into the Pinwheel Base.
- Use Clearance Codes on the terminal, hack nearby workstations, then fight your way up the elevator.
- Use a Conveyance Request keycard to call a drone elevator at the Drone Wing and ride it into the Drone Wing path.
- Open the Destroyed Wing route by disabling four external generator boxes so the central barrier drops.
How do I get Clearance Codes for the Pinwheel Base?

You’ll find terminals around the Outpost that demand Clearance Codes. There are three code types and each terminal requires two or three inputs; sometimes it will even ask for duplicates. I’ve seen terminals randomly request the same code twice, so don’t assume variety every time.

How I do it: sweep standard spawn areas first—supply rooms, security alcoves, and any UESC dead drops. If you’ve cleared earlier nodes on the Outpost this run, codes tend to spawn in predictable pockets near terminals and lockers. Once you’ve entered the correct sequence, hit the nearby hackstations; they reset the elevator and summon a wave of UESC defenders you’ll have to thin out before the lift will run.

Tip: treat the terminal sequence like a short boss timer—enter codes fast, position for the UESC spawn, and hold your angle on the elevator doors. That elevator takes you straight into the base’s inner ring.
Can I use the Conveyance Request from a previous run?

The Conveyance Request keycard calls a drone elevator at the Drone Wing. It does not have a fixed spawn—I’ve found it scattered across the Outpost and sometimes carried over if you grabbed it on an earlier run. If it’s in your inventory, you can use it at the Drone Wing console to summon the drone and ride it into the base’s Drone Wing path.
Platform note: Bungie’s spawn logic behaves the same across Steam, Xbox Series X|S, and PlayStation—so your chance of finding a keycard doesn’t depend on platform, only on where you cleared earlier in the run.
How do I open the Destroyed Wing barrier?

The Destroyed Wing sits above Orientation and its central door is held shut by a barrier topped with four lights. You remove the barrier by disabling those lights—each one is tied to a small white box attached to the exterior of the Destroyed Wing.
Those boxes spawn in random locations on the wing but are always attached to the exterior. Shoot any four and the lights go dark; the barrier drops and you can enter the center. Shooting the boxes is like flipping circuit breakers in a dark building—one clear action, instant change in the environment.
Quick tactic: use precision weapons or a grenade to take out boxes from cover, because destroying them triggers patrols and turrets nearby.
Final checklist before you push into the Pinwheel Base
The center of the map draws attention like a heat-seeking magnet, so go in prepared. I recommend bringing a long-range primary, splash damage for groups, and at least one consumable that restores or buffs defenses.
- Clearance Codes route: gather 2–3 codes, prep for UESC spawn, hack the workstation.
- Conveyance Request route: secure the keycard, call the drone at Drone Wing, ride the elevator.
- Destroyed Wing route: locate and shoot four white boxes to kill the lights and drop the barrier.
These paths are different flavors of the same problem: gain access, survive the wave, and control the center. Bungie’s design rewards decisive play—so will you take the terminal and fight, call the drone, or blind the barrier and rush in?