Hit Points: 150 Size: Large Supply: 2 Cost: 150 100 Build Time: 50 Trained at: Factory Requires: Barracks, Factory, Machine Shop for Siege Mode.

Ground Attack in Tank Mode: 30e (Upgrade to +9) Ground Attack in Siege Tank Mode: 70e (Upgrade to +15) Air Attack: None Range: 6/12 Sight: 10 Armor: 1 (Upgrade to +3) Dropship Carries: 2 Tanks Production Hot key: T

When attempting to charge a Tank with a ranged unit like a Hydralisk, Marine, Dragoon, select them then right click right in front of the Siege Tank. If you use attack move or attack, the units will stop as soon as they get in range of the Siege Tank. But Siege Tank will still be able to hit them. You will notice this when using Marines and Hydralisks. This is a common mistake people make. Instead you want to rush through all the fire until your units are within the minimum firing distance of the Siege Tank.

Infantry Support. For the Tank Commander, it's beneficial to have Marine support to pick off units that get too close to your Siege Tanks. You may want to place those Marines up front, beside or behind your tanks. Goliaths can work too. If you do not have Marines, you can use other Siege Tanks to protect each other, but the splash damage of the Siege tank will damage your own Tanks. This can be offset by having a group of SCVs in the rear ready to repair. In this picture, a large group of Marines with Stim Pack are preventing any enemy units from reaching the Siege Tanks while they fire from the rear.

Siege Tanks are very effective on high Ground. Whenever the opportunity arises, place (even Dropship) your tanks to higher ground. Send Goliaths to prevent the enemy from transporting units up to high ground to get your tanks if possible. With your tanks, bring some SCVs to repair the Tanks, if they are damaged. You can also use them to build Missile turrets on high ground to prevent your Siege Tanks from being attacked by Air units or to fire on transports

Tank Spotting
Siege Tanks in Siege Mode can fire further than the range of their vision. Therefore, it's up to you to extend their view allowing them to fire at greater range using units, or even buildings. You can use Marines up in front of your Tanks to prevent any units from getting close to your tanks and to spot for the tanks. Be warned that your Siege Tanks will often fire on the enemy and the splash damage sometimes kills the Marines in front of your Siege Tanks. Ghosts with the Sight upgrade work pretty well, especially when cloaked. You can even use Dropships on hold ground to spot. Wraiths, and especially Cloaked Wraiths also are good to put up front to spot for your Tanks but they will fire on the enemy revealing their presence therefore Dropships are usually better. If your Siege Tanks are defending your town, you can even lift-off a building and move it up ahead to spot for your Tanks. When you are on lower ground, your Siege Tanks can't fire on units on higher ground on their own, but if you use a flyer of some kind over the high ground, it will allow your Siege Tanks to see and fire at targets on high Ground. Also, if you have none of these units nearby to use for spotting, you can use the Comsat Station to cast Scanner Sweep (Especially easy when hot keyed) on the area to give your Siege Tanks range.

Dropships spotting for Tanks. The Dropship is allowing the Siege Tank to see and fire on the Sunken Colony without being attacked by it. Marines are surrounding the Tank to finish off any unit that gets close to it.

Armed with only a Dropship with two Siege Tanks with Siege Mode, this offensive caused great damage to the enemy. This attack takes advantage of high ground (Units attacking from lower ground to higher ground only have a 70% chance to hit) Units with longer ranges, such as Siege Tanks, on high ground areas gives them a better field of vision and makes them much less vulnerable to attack.) This setup, however is vulnerable to a Overlord landing. The Zerg enemy can put a few Zerglings or Hydralisks in an Overlord and land them right on top of the Tanks so the Tanks cannot fire on them (Because the target is too close). In this game, that is exactly what happened. The Zerg enemy landed a few Zerglings with an Overlord and attacked the Tanks. The Tanks went to Tank mode and retreated in the Dropship. The Dropship was then chased by Mutalisks. In this situation a few Marines would have defended the Tanks, and fought of the Mutalisk. It is best to combine this sort of attack, with another Dropship full of 8 Marines, to be placed around the Tanks for defense against a transport drop. More Dropships can be added, of course.

Marine spotting for Tanks. A Marine can be seen being placed up front to spot for the Siege Tanks.

Hop Scotch Maneuver. When attacking the enemy, you want to make sure you have some Siege tanks firing in Siege Mode at all time. When advancing, Siege Tank assaults often leave some Siege Tanks in the rear, out of range with no targets to fire at. In this situation, you want to leave the Siege Tanks up front in Siege Mode, while moving the Siege Tanks in the rear into Tank mode.

Move the rear Tanks forward to the front of your column and place them in Siege Mode. Move up the Marines in front of the Tanks to protect them. Continue on until the Siege Tanks in the rear have no more targets to fire on, and repeat this same procedure. Using this method, you always have some Siege Tanks in Siege Mode firing. This is much better than transforming all your Siege Tanks at once leaving a window where none are in Siege Mode firing.