Division 2 Civic Center Shd Tech Map. When you get near the spots marked on the map above you will see the shd cache marking appear on your map. In this video you will find the locations of all of the 5 shd in the civic center.
Go to the underground entrance straight down the street from the haven safe house (consult the pics below to see which one i mean). Map location for ny civic center shd cache in the sewers. The second civic center shd tech cache is in the sewers.