There's a small airstrip at the top right hand corner of the map, then
at the town just below it there's a main road all the way south to
the capital. Few towns and military camps along the route. You
could also set up a timer and have it as a race against the clock
or time trial, something like that.
And yes I'v been toying with this for a while now, No idea of a
good name yet. But thats the basic Mission right there, and no need
for any extra files or mods, can be all done somthing like wasteland I think