SCV
SCVs, short for Space Construction Vehicles, are the
workhorses of the Terran force and the units you will be relying on to do all your dirty construction work. As with other worker units, SCVs are in charge of building construction and the gathering of resources
Full
Terran SCV description.
Marine
The Marines are the basic troops of the Terran ground force, much like Zealots
are for the Protoss and the Zerglings for the Zerg. Equipped with a Gauss Rifle that allows them to hit both ground and air units, the basic Marine is indeed a highly versatile unit.
Full
Terran Marine description.
Reaper
The most hard-core of Terran Marines who prove too volatile for
Marine duty are instead trained as Reapers, the Terran answer to the need for rapid assault and mobility. Reapers are lightly-armored assault units armed with dual rapid-fire pistols.
Full
Terran Reaper description.
Medic
The medic is an unusual unit since it is unable to fight, but it
more then makes up for this weakness in its support role. The medic is able to heal Marines, Reapers, Ghosts, SCVs, and other medics for free.
Full
Terran Medic description.
Ghost
Also returning from Starcraft: Broodwar, is the enigmatic Ghost.
It retains its abilities from Broodwar including activated cloaking and the ability to call down Nuclear Strikes. The Ghost also retain their trusty Sniper Rifles, keeping to their role as stealthy killers.
Full
Terran Ghost description.
Thor
Lumbering across the battlefield, heavily armored and armed to the teeth, is the
monolithic Terran Thor. He does extreme amounts of damage to buildings and large units, while due to his slow speed and long reload time, the Thor is susceptible to fast, ranged enemies.
Full
Terran Thor description.
Banshee
The sleek Terran Banshee bomber is humanity's answer
to the need for heavy-duty, area-of-effect bombing runs on the battlefield. Equipped with missile volleys that specially target only ground troops, the Banshee rains forth unprecedented destruction over a large area, obliterating masses of enemy ground units.
Full
Terran Banshee description.
Viking
The Viking fighter is a relative of the Thor,
being a mechanized unit but that is where the similarities end. This unit is the Starcraft form of the transformer being able to reconfigure itself from a walking robot to a flying craft.
Full
Terran Viking description.
Siege Tank
Regarded by many as the flagship unit of the Terran side,
the Siege Tank is the iconic representation of Terran firepower. Like its Starcraft: Broodwar counterpart, the Siege Tank can either travel and fight in tank mode, or it can deploy into siege mode and unlimber a devastating artillery cannon with tremendous range and horrific firepower, at the cost of being rendered immobile.
Full
Terran Siege Tank description.
Drop Ship
The Terran Dropship, as its name suggests,
functions as the Terran transport craft that ferries troops via airlift around the battlefield. Good use of the Dropship allows a player to quickly transport ground troops to the site of the battle, into the heart of the enemy supply lines, or even into a normally unreachable expansion point
Full
Terran Drop Ship description.
Predator
Representing the next generation of Terran air superiority fighters,
the Predator is the Terran answer to the fast attack Protoss Phoenix and the replacement to the Wraith fighter of Starcraft: Brood War. The Predator is only able to attack air units
Full
Terran Predator description.
Nomad
Taking over the classic Science Vessel's duties as the explorer
and reconnaissance unit is the Terran Nomad, a floating explorer craft with capabilities very similar to the classic Vessel. Still functioning as the detector unit, the Nomad will be found leading Terran ground forces in spotting enemy stealth ambushes and engaging infiltrated forces.
Full
Terran Nomad description.
Battle Cruiser
As the pride of the Terran fleet, Battle Cruisers inspire fear
and awe with their sheer bulk, armor, and heavy firepower. Acting as the heavy aerial assault units for the Terran, Battle Cruisers make a return from Starcraft: Broodwar to continue their domination of the skies. The Battle Cruiser is expectedly slow and cumbersome, but it more than makes up for that weakness with fearsome weaponry and staying power.
Full
Terran Battle Cruiser description.
Firebat
Along with the other Terran infantry seen in Starcraft 2, the Firebat
is once again in the Starcraft Universe. This unit, while having a small range, can essentially be considered a melee unit. The Firebat approaches its enemy and releases a short burst of flame upon them. The key to the Firebat’s flame is that it affects multiple units.
Full
Terran Firebat description.
Former Starcraft 2 Units
Here are units that were in Starcraft 2, but that were removed by Blizzard since they did not fit. It is possible that some of these units maybe re-added to Starcraft 2 in the future.
Cobra
The Cobra was another new unit to the Terran arsenal, however, for now Blizzard has removed it from the units added to Starcraft 2. This unit was similar to the Vulture bike as it was a fast moving hover vehicle. One of its special abilities was being able to fire while moving. This made it the perfect unit to raid an enemy economy. Unlike the Vulture bike, however, the Cobra was able to hit both land and air units.