Gilgamesch
Ancient Alien
i can't build landships the city has auto plants and oil but they never appear in the units build list?
Good question, i did a quick search in units and there is no unit with this name (landship).
PS: Do you mean with landship, the tank? All looks fine in the <Unit_BuildingClassRequireds>.
PS.PS. Did a quick test and i can build Tank (Panzer).