What will DARPA think of next?

No problemo. Maybe the project would be to create an unmanned vehicle that would go up to a certain height, and then have to slove some sort of task, such as go from A to B, while going to an altitude of X. This is more of random idea spewing, but maybe something as complex as going from A to B using altitude X, and when reaching point B, they must deploy some sort of object. Then, travel back to A would be necessary to finish.

The craziness of this idea would cause the robots to have to be able to carry payload, go from one point to another (very far away), and then deploy the payload and return. This could be useful for resupply as well, as a flying project could take items and supplies great distances without the fear of low altitude anti-air.