Antonov 124 at Stennis Today

Enroute to ATL now. Anyone know what it may have picked up?
flightaware.com/live/flight/VDA1400

When I worked at HSA, the AN-124 was usually either there for the Navy Special Boat Team, or to pick up or deliver equipment for Lockheed Martin or Rolls Royce, both of which have manufacturing and testing facilities at the nearby Stennis Space Center.