Armor: Heavy
Hit Points: 150
Ground Attack (Tank): 30*
Ground Attack (Siege): 70*
Air Attack: 0
Attack Range (Siege): 12
Attack Range (Tank): 6
Gas Required: 100
Minerals Required: 150

The ability to convert to Siege Mode and fire high-powered shells farther than any other unit in the game makes the Siege Tank perhaps the Terrans' most popular (and awesome) unit. However, the Siege Tank is vulnerable to air attacks by large numbers of ground units.

The Siege Tank offers a good combination of mobility and firepower in combat situations. In fact, when your troops are moving so fast that you don't bother to pause to regroup, leaving your Siege Tanks in Tank Mode is probably a good idea. Otherwise they can fall behind the protective envelope of your supporting troops and become open to attack.

As soon as you've researched Siege Mode, your tank strategy will change dramatically. The Siege Tank has an explosive attack strength of 70 and a range of 12 (the game's highest). These two values combine to provide exceptional power you can use to level enemy bases in minutes. By moving up your forces in groups of Marines, Wraiths, and Siege Tanks (in Siege Mode), with each group of units protecting the others, you can advance on the enemy at will.

Role: Mobile Artillery Cannon
Armament: Twin 80mm Cannons 120mm Shock Cannon (Weapon Upgrade)

The heavily armored Arclite Siege Tank is renowned throughout the Confederacy for its devastating firepower and stalwart emplacement/advance tactics. Originally designed to serve as a "final defense" security cannon, the versatility of the Goliath Walker showed that mobility was crucial in maintaining an effective military, In its final form, the Siege Tank is intended to operate as a two-stage vehicle, although the first series of tanks produced were single-stage vehicles that were later upgraded.

The primary form of the Arclite Siege Tank is extremely effective, but city assaults and base defense required more firepower than even these machines could effectively provide. The solution was to provide a secondary, artillery-based mode for the tank. Once transformed into Siege Mode, the Arclite tank sacrifices mobility to deploy its awesome Shock Cannon.