The more I play this game the more I love it due to its authenticity, lol! After checking through the Pitomnik wiki, there were indeed 7 airfields located within the Stalingrad Cauldron with Pitomnik near the center. The 7 airfields were:
Pitomnik
Bolshaia Rossoshka
Stalingradski
Gumrak
Basargino
Voroponovo
Karpovka
The Pitomnik is most likely the airfield at Krasny Pukhar while Gumrak is easy to identify. I believe that Stalingradski is likely the airfield at Krasny Oktyabr as that is the airfield used in the Gumrak and Stalingrad city CTA. As for the other 4, I'm not sure, but here is a link to a jpeg of the cauldron with the red circles representing each airfield.
http://commons.wikimedia.org/wiki/Fi...clement_it.png