A Carryall about to pick up a Harvester that is being attacked by a Missile Tank.
Looks as though the Sand Worm has taken a bite out of the spice production, be careful with your Harvesters, Sand Worms ofen congregate around spice.
Other:
Ice on Dune? There was ice in the books but this shot is from the beta version and Westwood has said they were removing ice because it just didn't look right.
The construction of the Refinery has been stopped, units and buildings can only be built one at a time, no setting a certain number of units and letting it go by itself.
