I'm not certain - assuming their goals are consistent with other depictions they'll probably come armed with pre-wireless technology spoofing devices and a serial or parallel port so they can actually interact with and take over missile control systems.

Some day we might find an uneasy peace with the machines when we desperately admit we need their advanced technological capabilities to bridge PS/2 to USB-c so we can keep using our clicky IBM Model-M keyboards.

Shhhh, that's how I work on reverse engineering old IoT stuff! SDR, loose admit-all policies, extremely low power, figure out what APNs and info it wants, and start capturing requests from it.