Heavy Artillery/Pre 1.3

Overview
A premium vehicle, the Heavy Artillery is a souped-up version of the Light Artillery, with more HP and slightly more damage. The long reload time of the cannon permits to avoid using up its ammunition too quickly, and the unit has a very good value of power to it, being able to hit all surrounding tiles around the designated target, for a total of 1 (direct) + 8 tiles of splash damage.

Damage distribution is 100% in the center tile, 65% in the side tiles, and 30% in the corner tiles.
 * e.g. assuming no other damage modifiers, Heavy Artillery would deal 30 DMG in the center tile, 20 DMG in the side tiles, and 9 DMG in the corner tiles.