Siege tank (StarCraft II)

The siege tank provides the terrans with mobile, long range firepower.

The siege tank continues to function as it did in previous games with the dual tank and artillery modes, except it doesn't require as much support as is needed in the original StarCraft. The tank cannot fire when moving, leaving the tank vulnerable to attacks by melee units. It serves particuarly well against the zerg when it comes to gaining ground.

Strategies
Building an army of both siege tanks and Thors is possible, but expensive. The combination is difficult to stop. However the current crucio tank (cost 200 minerals & 100 gas/ being in tank mode does 25 damage to armored units, and 60 damage in siege mode/ needs 3 supply and loses cooldown fire by not aiming with the cannon enemy units while moving) brings in SC2 worst properties than previous arclite tank (cost 150 minerals & 100 gas/ being in tank mode does 30 damage to large units, and 70 damage in siege mode/ needs 2 supply and aims enemy units while moving). Current tank brings a new design for siege deploy and when it takes place it's being centered by a red circle that shows the player who controls it the range limit (this stat can be seen in battle report 4). Despite the fact that the current tank has 13 range, battle report 4 shows it's old 12 range limit as not being changed. In this case it seems that blizzard team might not want terran's tank to be a great support like it was in starcraft 1.