Too Gamey for me.
How about dropping special ops. 'observation troops' into a sector using a C-47, and they'd provide intel on that sector for, say, 20 mins. To see the intel right click on the strat. map. and you'd see a list of the planes in the air in that sector. If there's a port present, you'd also see if the flat-top's at home. Could also be used to cover the approaches to bases by indicating how many GVs are in the sector - but they wouldn't necessarily provide the locations of them.
These spec. ops. troops would cost the perks. and you'd have to sneak them in too.
That should be relatively easy to implement as there's no new modelling and very little bandwidth cost.
It doesn't solve your problem, but then again, maybe the enemy were luring you away from the action on purpose.