A total-conversion fan-sequel for Battlezone II: Combat Commander with high definition graphics, new physics and tonnes of new and unprecedented features.
An assault tank and a turret protect a civilian town, presumably from the Wwerlna. Although, they may be protecting it from looters, boat-people, earwig invasions... etc.
Well, it looks like turrets will no longer be useless decoration. :) That one looks like it could actually do something other than annoy the bad guys. Also, was that assault tank inspired by the scorpion from halo?