Hmm, I would like to help you guys, but maybe I may end up making a guide. I'll give a few pointers though, these are my suicide runs to beat expert with an additional +1000 over the minimum score:
Applies to Expert, in order to get to expert you'd have to clear the earlier ones first.
-First rule of my thumb, land the first available plane into the first available terminal, using the quickest landing route possible.
-When all terminals are used up, instruct the next plane to land at the farthest runway route possible (remember to look at the arrows atop the holding patterns showing the designated runway approach. Instruct the plane to land on said runway arrow marker right before they pass it.)
-While doing the above, it's highly likely that a plane is boarding. Always tell planes to depart on the runway that the next plane is landing on.
Some things I noticed in the game:
-When an aircraft is on the taxiways and is requesting "clear to taxi", have it hold off until a landed plane lands and have it go to that terminal that the plane just "pushed back" from. It may look like they will crash, but the landed plane's wing will morph into the plane that is waiting to taxi, no collision. Fun
-The game is all about timing. Never land a plane when terminals are full with no aircraft confirming routes. When an aircraft confirms routes thats your cue to land a plane (although having beaten the game several times I test the limits by timing it exactly when a plane lands the next plane to takeoff will have already entered taxi'ing.)
-In all airports with the exception of one, there is only one pusher vehicle used at any given time. When you are pushing back an airplane, never determine takeoff runways for the next one until the previous airplane has already started taxi'ing. Many a time in my early days in this game I had airplanes pushed back while another is taxi'ing.
The game is fun, and I continue to be amused by it. Maybe we post high scores here?