Ruins and Reverberations is one of the quests added to ARC Raiders with the Frozen Trails update and takes place at the Cielo Sereno Observatory on the Pendola Pass map. Players will be expected to complete the following objectives to complete the quest.
Before starting a match, make sure you bring a Spotter Relay and either a Zipline, Grappling Hook, or Snap Hook. The reason you need these items is explained in the walkthrough below. Celeste will give you a Grappling Hook for the quest, so you can bring that along if you don't have either of the other two items in your inventory.
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For the first part of the quest, you need to go to the Cielo Sereno Observatory, located in the northeastern part of the map. Be extra careful of the Bully ARC as you make your way to the Observatory because there are a lot of open spaces here, and getting spotted by the Bully might lead to you getting knocked down.
Once you reach the location, you can either use your Zipline to reach the very top or simply go up the staircase and into the control room. As you enter the control room through the main door next to the metal staircase, you will spot a broken roof. You need to use your Grappling Hook here to get up on top. Go straight ahead to find the antenna and use the Spotter Relay here to complete the objective.
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