A single player mission for zero hour story is as follows: General Leang has conquered a province in the south of China. You are in charge of our Base Tumbleweed. Build up a strong defense and start to stop Leang. Three tank regiments are going to attack our base. We don't know exactly time and direction. We have the information that Leang has a well protected base in the southwest and a rocket center in the south of our position. There is a factory in the little town near by. A truck convoy transports supplies for Leangs army. Somewhere north of Leangs base they are building a nuclear rocket launcher, try to eliminate it. Further details about objectives are in the included readme text document.