Long Range indirect attack unit with low movement. Attack cannot be launched after unit has moved. The siege cannon gets a fire power boost for not moving more than one turn.
Unit type: Ground
Firerange: 4-7
Movepoints: 3
Movetype: Tank
Vision: 1
Fuel: 30/30
Ammo 1 4/4
Costs: 20000
Trivia
Siege Cannon likely based on Soviet/Russia 2S7 Pion