Ground Crew

The pushback tug - the viechle that pushes planes backwards the gates. The catering tug - if they need to load a big cargo plane, the catering tugs lift up packages. The scrapper - planes need to avoid it. It destroys old planes no matter what. The stairs - sometimes the plane doesn't have a gate. To get passengers in or out, people use stairs. Fuel tug - there is a small part in the plane's wing that attaches a hose of the fuel tug. It refuels the plane. Marshall - a human that shows commands with two glowing sticks to the plane. -_-_-_-_-_-_-_-_- If you want, you can add more (I don't know any others). You can be a ground crew, a plane, a... I don't know, but you can also be a passenger.