I believe im going to go with LAX because I really like the airport map that is already in LA Mod. I start working and cleaned up the airport from debris, I believe the fire dept will be located on the end of the airport where the explosion mission takes place, its right near the gate incase they need to get off the runway. Also have to start deciding what I am going to do on the outskirts of the map city wise.....
As for stations..
Main Station (Located near Gate #2)
2x Crash Trucks - this is good for realism
1x ALS Engine - Most Airports are going with a engine as well in case they have a fire in the terminal
1x Aerial Ladder - same as above
1x Brush (Quick Attack) - I dunno about this one... is it really necessary
1x Light Equipment Vehicle - This could be made into a First Response vehicle
2x ALS Ambulance - Does LAX really have ambulances on site??
1x Battalion - This could be taken over by the First Response vehicle
1x EMS Supervisor (possibly) - Not needed
2nd Station (Not Definite) Personally this station is not needed.
2x Crash Tenders
1x Foam Tender
Thats my opinion in the matter :-) great idea though