P. 287, Artillery
After Cruise Missiles add a new section:
Artillery Cannons
Artillery cannons do not use command points for direct or indirect fire. They do not use artillery to-hit modifiers, but instead use standard attack to-hit modifiers, including range, terrain, etc. They may fire indirectly using the standard IF#, Indirect Fire rules (see p. 225). Artillery cannons, like standard Artillery, make their attack in addition to their standard attacks, may target a POI (Point of Interest) rather than a target unit, and scatter (at half the distance of standard artillery). They do not apply the immobile target modifier.