The tethered are differnet and long in use in America for mass surveillance in cities [0].

[0]: https://www.unmannedsas.com/

These have explosives and a ten mile fiber optic cable. Little different.

The Ruhrstall X-4 [1] had five and a half kilometers of wire 80 years ago, along with a 20kg warhead and an acoustic proximity fuse.

1: Never deployed operationally Luftwaffe wunderwaffen, first tested in August 1944, wire-guided air-to-air missile.

Ten miles is pretty impressive, but TOW missiles are from the 70s.

Explosives are just a payload (like any other payload you can attach to a drone), either independent from the whole system or activated through a simple relay. You can see ArduPilot is the ground station, where you can easily customize such switches. The distance is only about the wire/fiber; obviously, fiber is lighter, hence the longer distance for the drone to carry.