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Missile Defence Software is a system that allows ships to automatically react to missile attacks. It locks on to the incoming missile and launches a Mosquito Missile of its own, to destroy it and thereby serve as countermeasure. The software can be bought at a number of equipment docks and corporation headquarters and, once installed, is permanently operational as long as there are Mosquito Missiles in the cargo hold.
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Detailed Info
Note that MDS is /not/ necessary for <playership> /manual/ use (though its manual function may require an explicit keybind in <settings>); neither do manual or automatic anti-missile measures require Mosquito missiles to be explicitly selected in <playership> loadout: they simply have to be in the ship's cargo. MDS simply automates the counter-missile launch for both <playership> & any NPC ship