DJ Artyom

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In the "Defense" chapter you need to pick up the cassette tape from the dying captain after defending your position from the nosalises. Now you need to keep playing until you reach the "Outpost" chapter. Once there, work your way up the stairs until you get outside. Your compass will point towards a building with a ladder on its side. Below the ladder is an excavator that you need to climb. From there you can go up the ladder to reach the rooftop. The radio tower is on the rooftop, it looks like a wooden shed with a satellite on top. Interact with the radio tower to unlock the achievement.

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