Vultures: Good to kill Zealots, Zerglings, and Marines. In a pack of 5 or more, Vultures are excellent rushers past a weak defense where you can kill lost of peons. Vultures are super fast; you can research a speed upgrade which helps even more. You can use a lone Vulture to take out Zealots that don't have backup: simply hit and run carefully. Just don't waste too much precious time if you can help it.

Vulture Bike Upgrades

• Spider Mines: Spiders are a great weapon for offense and defense. Remember Vultures, Archons, and workers don't set off spider mines. When attacking a base, set spider mines in front of barracks and factories to kill newly produced fighters. Don't put the mines near larva unless you want to kill them because they will set the mines off. Spider mines are cloaked, so they do well to spy for you. The spider mine's minor enemies are cheap weak units (Zerglings/Broodlings) who disarm them for cheap. The spider mine's greater enemies are air units, workers, Vultures, and Archons who can all attack detected spider mines without setting them off. Spider mines can also be shot at range by Hydralisks, Dragoons and Siege Tanks. Sometimes a group of range attackers can kill the spider mine as it flies towards it's target.

Goliaths: Affectionately called Golgos by my friend Studman, Goliaths are good anti-air units, and are just ok against ground units. They are really good against the large air units: all of the Protoss air except for Observers, Battle Cruisers, and Guardians. Marines can often do the job just as well or better when bunkered. I usually don't go crazy making Goliaths. Like other Terran units, They can be repaired however, so they are not useless.

Siege Tanks: The tanks are another favorite Terran unit! They should make up a good portion of your men in most games. In siege mode they have a greater range than towers, Reavers and Templar's trying to cast Psi Storm. Use a scout or Comstat scanner to take full advantage of their range (they can hit further than their sight). Ghosts cloaked and spider mines also make nice scouts, as well as flying units. Also, lone marines are good scouts since they are expendable. Without Siege mode, the Terran tanks are mostly useless. Siege Mode is great for both defense and offense. Set them up near choke points or bring them in during a base assault.

Dropships: Nothing out of the ordinary with them. You can drop Marines or Firebats into peons. They are rather slow and cannot be upgraded. This is not a huge deal, especially when deciding to move peons to new minerals, since you can fly a pre-built command center or barracks to plateaus since the Terrans have the ability to move their buildings.

Wraiths: These guys are good to have when you have some room to breathe during the game. They are good to attack the enemy when they don't have cloak detection around. Beware of Terran Comstats scanners which can cut thru cloak (simply run away when they use it.) Don't build too many Wraiths unless you are rich because they are expensive and die very easily. Wraiths and goliaths are my last priority.

Wraith Upgrades

• Cloak: Be sure not to cloak and then uncloak soon after when you need cloak again in the next 20 seconds, or you'll waste too much energy. Initializing cloak consumes 25 energy right off the bat. You are better off leaving cloak on.
• Energy Upgrade: You can upgrade the energy capacity of the Wraiths allowing them to cloak for longer periods of time.