Wow! Thats a really fresh idea. Nobody even thought that way...

That could be a good pack, but not AI KC-135 alone. CS already did weapon for FSX, so it could be another "out of stereotype" addon introducing Military\Spec operations like refueling, surveillance, photo-recon. AI tankers, Hi-Res photo\video camera, radar, water tanker could be in one pack.

KC-135 and C-130 fire fighter can be separate packs.

Also, working AWACS, VATSIM\IVAO ATC software compatible - could be super great. Because there is no way to simulate ATC from the plane in this networks, and most of ATC controllers in VATSIM are pilots themselves.

Speaking about online flying. There is a lot of events going on in VATSIM\IVAO, but there is no way to simulate search\rescue operations, and so on because of:

1- there is no AWACS
2- because no basis for that kind of operations. No AI boats needed to be found\ rescued, no fire in forests, no volcanoes, no hight politicians meetings with closed airspaces and fighters patrolling, no  nothing.
All the events are - fly there, or fly this route, we will provide full-ATC.
There is definitely place to improve.

So if make AI tanker, why not to fill that gap like with weapon for FSX, and create entire basis for that kind of activities.