The most likely unit to have organic, fully integrated UAV support available in the Twilight 2000 timeline IMHO is...

...wait for it...

...The 9th Infantry Division (Motorized) in the RDF Theater... (you knew it would involve the RDF Sourcebook, didn't you?).

MERCURY GREEN

When the 9th ID became the High Technology Test Bed Division, it experiment with a lot of kewl stuff like FAVs, AGS, Pedestal-mount Stinger AA, Hellfire armed HMMWVs, and they really wanted UAVs.

But the technology didn't exist yet. So they used a stand-in manned system, called MERCURY GREEN. Which, from what I've found, was a Cessna, lol.

Had the 9th ID HTTD project continued past the fall of the USSR, it's highly likely they would have moved past using surrogate aircraft and would have had a mil-spec UAV platform available for combat operations.

It's all outlined here, especially Appendix D.

https://web.archive.org/web/20191026...u2/a370233.pdf