Countermeasure Atari 5200 game. Terrorists have seized control of several missile silos and are planning on launching missiles to blow up Washington D.C. Your job is to stop them! From a top down point of view, you control a tank over varied, scrolling terrain. To stop the missiles, you have two options: you can destroy all of the missiles, or attempt to guess the fail safe code. If you try to destroy all the missiles, you must do so in under ten minutes. The missiles silos have many defenses which the terrorists also control; pillboxes, tanks, jeeps, and cruise missiles are all capable of destroying your tank. Should you attempt to guess the fail safe code, clues can be found by docking at supply depots. The code is three letters long, and can consist of any combination of L, E and O. When you enter a war room, you have a very short time to enter the code correctly or the missiles will launch. When the missiles have been stopped (by either means), the level is complete and you continue on to the next, more difficult round.