Opportunity Knocks is a location-based challenge in Borderlands 2 located in Opportunity. To complete this challenge, three ECHO recorders located throughout the city with information regarding its construction must be recovered. Media The first ECHO is found on a bench just next to the vending machines when entering the city. ECHO 1 on map The second ECHO is found on a bench in the center area, where Jack's Body Double is found during The Man Who Would Be Jack. ECHO 2 on map The third ECHO is found on a bench in the far end of the city, on a bench near vending machines. ECHO 3 on map1 of 6Opportunity Knocks Retrieved from "https://borderlands.fandom.com/wiki/Opportunity_Knocks?oldid=470719" Categories: Challenges Languages: Русский Community content is available under CC-BY-SA unless otherwise noted.