TAC SHIP
(Integer torp | String all, String NONE | Float bearing, String +/-, Float elevation, Integer range)

This command will fire the specified torpedo, or all armed torpedoes if the
parameter is 'all'. If the second parameter is NONE, the torpedoes will be
fired at the currently locked target.  If the second parameter is not NONE, the
second, third, fourth and fifth parameters are treated as bearing, elevation
sign, elevation and range respectively. Torpedoes can only be fired when they
are armed, and when the ship is not cloaked.
