Space bases became a reality and, over time, various kinds of production began to be transferred there, based on locally extracted resources. Information has spread that experiments on creating secret weapons are underway on one of the bangs and there are first results. Immediately there was a mass of people who wanted to get documentation, or even better, a sample. A string of mercenaries began the hunt. Your unit must guard the base and prevent entry from outside. The assault has already begun and you must destroy the enemy in Enemy On Space Base.