[P-38L]

As an example of a specific mission. Lets say that in this case an airport don't have fuel at the moment, but have weapons or spare parts.
If you land at an airport that does not have fuel, you can request it (you will have to wait). The mission must be programmed by sending a cargo plane which other pilots (or AI) on the same side must protect this plane to reach its destination.

The fuel is running out in airports as pilots are requesting fuel. The same applies to weapons or spare parts. The pilot can ask how much fuel or weapons have the airport, and so distribute it among their colleagues.

In other forums, I have seen progress on the C-47 or Li-2; this is a good task for these aircraft.

Fuel, weapons or spare parts, can also be transported by land (in smaller quantities). These transports may also be protected by aircraft of the same side.

The mission can then extend far between several pilots. A group of pilots are flying, protecting cargo planes. Another group of pilots are stationed on land at an airport waiting for the cargo ariplane that transport fuel, weapons or spare parts. The enemies will try to shoot down the cargo planes. If they succeed, the mission will have a very different outcome.