Where is Rustaud's farm?
This challenge is particularly simple, if you know how to do it. Here it is asked to find a gravity thrower, a new weapon that lets you throw objects, or a Flying saucer, and of deliver a tractor to rustic farm.We advise you either to land in a city where saucers are present above, and to take one to go to the rustic farm, or to land directly on the spot and buy the gravilancer directly from Rustaud, although this one is sold for 600 gold bars.
Then all you have to do is find a tractor, which will not be difficult, since there are very many of them around, whether in the farm field or in Corny Complex. If you don't know where to find Rustaud's farm, be aware that this is the Armored Farmer's Domain, which we have indicated on the map below.

Once a tractor delivered, the challenge will be completed and you will get 30 XP for your seasonal progress.