Location: Power Dome (primarily, though it will deviate back to the past two areas)
Shortly upon your entry into the Power Dome, you will see a peculiar icon like a head. This is one of the quest robots, similar to the one in the Pleasure Port. Warbler-48, once you manage to get into the room and talk to it, will ask you to deal with some of the Spectrum Shepherds in a fit of revenge.
There will be three groups that will spawn now in previous areas, symbolized by objective markers in the Pleasure Port and Satellite Chalet. Quickest route to the first two in Pleasure Port would be using a Mid-range Zap to get back there, which will send you right next to one. Defeat them and save one for the body as it is a green-security body. From here, you can either go into the main lobby of the Pleasure Port and kill the next detail, or Mid-range zap (or run) all the way to the far-east side of the Chalet to encounter the other detail. Personally, I'd use the zap to get back to the Dome and go up through it to the detail on that side.
Either way, clearing all three patrols will finish the request and reward you with some skill points and this trophy.