Rocket launcher - a simple and cheap means of defense. Since this is the development of conventional ballistic tools, it does not require further modernization. Small production costs justify its use against smaller fleets, but over time it loses its value. Later, it can be used as a “cannon fodder” to draw enemy fire away from more valuable defenses. Defensive installations deactivate themselves, as soon as enemy severely damages them. The possibility of restoring defenses after the battle is about 70%.