As a bit of trivia, somewhere in the former, undestroyed Ukraine was a business making model airplane engines. For some 20-25 years there were available engines known as Fora (brand) which were used in controlline combat as well as R/C racing. Super precision, super fast and super expensive. I had ordered two about 20 years ago but delays in production and great demand in the modeling world led to mine being cancelled. The engines I saw in person, and performing, were impressive.
Technically that doesn't require a human: That just means the Spectre would identify the threat and pass on targeting data in theory. Regardless, it seems likely that a person is needed to give the other.
Regardless, as long as they don't fit it with nuclear warheads, then we shouldn't be in danger of Skynet anytime soon