From the DARPA website

AERIAL RECONFIGURABLE EMBEDDED SYSTEM (ARES)

DARPA unveiled the Transformer (TX) program in 2009. Transformer aimed to develop and demonstrate a prototype system that would provide flexible, terrain-independent transportation for logistics, personnel transport and tactical support missions for small ground units. In 2013, DARPA selected the Aerial Reconfigurable Embedded System (ARES) design concept to move forward.  ARES is a vertical takeoff and landing (VTOL) flight module designed to operate as an unmanned platform capable of transporting a variety of payloads. The ARES VTOL flight module is designed to have its own power system, fuel, digital flight controls and remote command-and-control interfaces. Twin tilting ducted fans would provide efficient hovering and landing capabilities in a compact configuration, with rapid conversion to high-speed cruise flight…

The ARES program would enable numerous benefits, including:

Useful load capability as high as 3,000 pounds, more than 40 percent of the takeoff gross weight of the aircraft

Flight performance similar to light aircraft

Compact configuration and the ability to use landing zones half the size typically needed by helicopters of similar size

VTOL operations from prepared, unprepared and ship-based landing sites