In the Dead Space 2023 Remake you’ll need to calibrate three ADS cannons towards the end of chapter 4 - Obliteration Imminent. It’s not immediately obvious how to do this, so we’ll show you exactly what to do on this page.

How to Calibrate the ADS Cannons in Chapter 4 - Obliteration Imminent¶

Once you’ve supplied power to all three of the ADS Cannons, you’ll discover that they’re not properly calibrated. Isaac suggests a plan to recalibrate them, but you’ll need to put yourself in harms way as you go outside the ship through the Exterior Access door. Make your way there by following the objective path and you’ll soon find yourself in zero gravity, where you need to use your thrusters to reach the ADS Cannon calibration panels.

Destroy the Asteroids with the ADS Cannons¶

As you make your way to each cannon you’ll be in danger of being hit by asteroids. You’ll almost certainly be hit by a few of these so don’t worry too much about taking damage, but make sure that you have enough health so that you can take a few hits. After interacting with the calibration panel, you need to aim as you normally would when you’re about to fire one of your personal weapons, but rather than firing with them you need to press the interact button, which is on PC, on PS5, and on Xbox. This will fire the cannon at the target you’re aiming for, as shown in the screenshots / video below.

Now that you know the basic principle of how to fire the ADS Cannons, you can do this for each cannon, and you will need to hit a number of asteroids with each until the the calibration progress bar is filled. It will increase by 20% for each asteroid that you hit, so you’ll need to destroy at least 5 asteroids with each cannon to calibrate them properly.

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(1 of 4) Interact with the ADS Cannon calibration panel to begin aiming with it.

Where to Find White’s Rig¶

After recalibrating each ADS Cannon, all you need to do is return to the ship via the Exterior Access door, but don’t forget to loot White’s Rig, which can be found just beyond the third cannon, before you leave.