Itd be cool to have a refueling area where to taxi to at airports or at least make stopping at an airport for a certain ammount of time refuel your plane!

Refueling and rearming when you land at a airport or carrier. i mean its just a lazy way of restarting your game. i doubt this will include detached custom weapons like space shuttles or cruise rockets.

Have weather like rain, wind and maybe fog. If fog is yes than you can have fog lights or on the runway, Aircraft carriers or plane. And before every level you play it will tell you were the wind is blowing and how strong. Make sure the player can adjust it to there desire. for the fuel every time you land on the runway you can pause and there will be a fuel filling saying 'refill' that is only allowed to be on the runway or aircraft carriers.