+1 on that Wutz.
Personally flying long distances is no problem for me, so smaller maps don't mean much.
I saw somewhere that flight times are no longer a problem for anyone, especially now there is a feature to take over an AI controlled aircraft. You will be able to set a flight of AI and then 'jump' into the action.
Surely the gangbangers don't want to waste time with take offs and landings anyway since it's not realism they are really after. 5-8 min flights are a thing of the past, just jump on in buddy!
If I had to vote for a smaller map, I would definitely go with the Pas de Calais > Dover map on a 1:1 scale, preferably 200 x 200 so there is time to grab some altitude.