The GS-2 Godsend was a man-portable GDI ion cannon targeting beacon of the First Tiberium War and was used by troops to request an ion cannon strike at its deployed location. The beacon automatically transmitted authentication and targeting data. The latter allowed the ion cannon to deliver a strike directly on the beacon. A strike could be averted by disabling the beacon. This was most reliably done by physically accessing the GS-2 rather than attempting to jam or modify the signal. Engineers and technicians were trained to disable beacons.