One of the many beauties of this game is that the instructions are frequently wrong compounded by the frustrating fact that there is no where to go to get up to date information. Because there used to be active forums which resulted in multiple rule changes, the rules across the servers are different. Consequently Express's rule set which is a hybrid of primary rules and rules tailored to the compressed time of play makes little to no sense; the vagaries of GDI and DR being the prime examples.