Combat sentry proto MK IV holotape

Combat sentry proto MK IV holotape is a holodisk in Fallout 4.

Location
It can be found on a terminal in the main building of the Robotics Disposal Ground. The holotape contains the remote control program for a prototype Sentry bot. Using the holotape's application can send the Sentry Bot to a variety of military installations to kill any and all hostiles in the area.