Long recon scope (Fallout 4)

The long recon scope is a weapon mod for various weapons in Fallout 4.

Effects
The recon scope allows you to mark hostile targets with a red diamond by aiming at them for a few seconds. Once marked, you can track them on your HUD until you either kill them or move out of range. These markings are distinct from those of hostiles who have detected you; those appear as red rectangles, and are only visible on the compass.