Freight in C-evo is a pre-designed special unit available quite early. It requires the Trade advance. Standard cost is 60 resources. Strength is fairly insignificant at 0/6 and speed is the standard minimum 1.5. Unlike the Civ2 freight unit, its incorporation in something else being built is not restricted to Wonders. It can be used to speed the production of anything except colony ship parts. However, like units and buildings being incorporated into new ones, it contributes only two-thirds of its resource cost.