Welcome to the Signal Intercepts setup mission guide for Doomsday Heist Act 1 in GTA Online. This walkthrough explains how to effectively use the previously acquired Deluxos to hack multiple moving targets on land, sea, and eventually in the air, gathering crucial intelligence.
In this setup mission, you and your friends will need to get into the Deluxos and hack some targets. The first four targets are inside moving vans. Get close to them and hack the targets using the SecureServ app on your phone. You will see a yellow circle around the targets, that yellow circle represents the vicinity you need to be in for the hacking to work. After hacking, you need to destroy the vans. A tip when you're hacking the van is to stay in front of them in order to avoid getting shot at.
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After hacking all four vans, you will need to hack four more targets — this time, on boats. The Deluxos have a hover mode feature which is unlocked when you get to the boats part of this mission. You simply need to go to the boats and hack the targets. A tip to avoid getting shot at from the boats is to circle around them while staying inside the yellow vicinity circle in order to hack. After hacking the targets, simply destroy the boats as well.
