(Some content credit goes to our friends at SCLegacy.com) Ground Units: *
T-280 SCV (Space Construction Vehicle)
Description: Standing just over three meters tall, the SCV is a reliable vehicle, able to perform a multitude of tasks, ranging from harvesting resources to constructing structures in space or on the ground. This has led to its proliferation and use as a general-purpose SCV throughout the Koprulu Sector by civilian and military organizations alike. In the era of the Terran Confederacy, volunteering to pilot an SCV appeared to be an alternative to military service. Notes: SCV's will have repair set to "auto-cast". Stats
Built by: Nexus
Type: Biological - Mechanical
HP: 60
Minerals: 50
gas: 0
supply: 1
Speed: Normal
Build Time (sec): 17
Ground attack: 6
Range: Melee
Armor: 0
Size: Light
Marine
Description: Marines compose the bulk of most front-line forces, ranging from officially government-sanctioned units and local militias to renegades and mercenaries. Marines are generally equipped with a armor suits and rapid fire small arms. The suit provides full life-support and NBC protection, allowing marines to deploy into environments that would otherwise be inimical to human life. Notes: Marines will be able to receive a ballistic alloy combat shield upgrade that increases their hit points by 15. Once upgraded, the marines' game model will change to include a shield. They will also receive the U-238 shells to increase range. Stats
Built by: Gateway
Type: Biological
Health: 45
Speed: Normal
supply: 1
Mineral: 50
Build Time: 20s
Ground/Air attack: 6
Attack Speed: Normal
Range: 5
Armor: 0
Size: light
Abilities: Stim Pack
Description:
Allows the Marine to sacrafice health to increase attack and movement speed.
Researched at: ?
Energy: N/A
Mineral: ?
Gas: ?
Reaper
Description: Reapers specialize in hit-and-run, close-quarters combat. They are more mobile than Marines as their jet packs allow them to surmount obstacles independently. Reapers are clad in self-contained body suits, and are armed with dual P-45 Scythe Gauss Pistols and deuterium-eight demolition charges. Notes: Reapers can leap up and down ledges and over rocks without the need of a spotter. This makes Reapers ideal for scouting and hit-and-run attacks. The Reaper's low damage attack ignores the specially hardened shield of the Protoss Immortal. Stats
Built by: Gateway
Required: Merc Haven
Type: Biological - Hover
Health: 50
Speed: Fast
supply: 1
Mineral: 50
Gas: 50
Build Time: 25s
Ground attack: 3 (x2 attacks))(+15 vs. Light)
Attack Speed:fast
Range: 4
Armor: 0
Size: light
Abilities: Magnetic Mines
Description:
The Reaper throws a mine that detonates damaging nearby units.
Energy: N/A
Mineral: ?
Gas: ?
Notes: Each mine has 10 health and deals 30 damage. A red bar will denote how much time is left till it detonates. Marauder
Description: The Marauder is equipped with dual concussion-grenade launchers which reduce a biological unit's speed immediately by a set percentage Notes: The Marauder is considered an early support unit, designed to pick off early game units. It is useful for slowing down fast melee units. Stats
Built by: Barracks w/ Tech Lab
Type: Biological
Health:150
Speed:Normal
supply: 2
Mineral: 150
Gas: 50
Build Time: 25s
Ground attack: 10
Attack Speed:Normal
Range: 6
Armor: 1
Size:Armored
Ghost
Description: Ghosts are Terran covert operatives known for their psychic abilities. Ghosts were chosen from psychically-gifted individuals who were quarantined by the Terran Confederacy and trained from infancy to channel their psionic energies to augment their natural phsyical strength and endurance. Conscripts who successfully completed the Ghost Program's rigorous training and augmentations then served as commandos and assassins. Notes: Ghosts may be available earlier in tech tree, but abilities like Cloaking would only be available afterwards. Stats
Built by: Barracks w/ Tech Lab
Required: Ghost Academy
Type: Biological
Health:100
Energy: 200
Speed:Normal
supply: 2
Mineral: 100
Gas: 200
Build Time: 33s
Ground/air attack: 10 (+15 vs. Light)
Attack Speed: Fast
Range: 10
Armor: 0
Size:Light
Abilities: Cloaking
Description:
A cloaked Ghost is rendered invisible to enemies, unless an enemy detector is nearby.
Researched at: Ghost Academy
Energy: 25 (+1 per second)
Mineral: ?
Gas: ?
Sniping
Description:
Deals 50 damage to light units +100 damage vs. light Armor. Eliminates smaller units like Marines in one shot, but will do neatly nothing to large units like Ultralisks.
Researched at: Ghost Academy
Energy: 50
Mineral: ?
Gas: ?
EMP Shot
Description:
Same as the former Science Vessel's EMP.
Researched at: Ghost Academy
Energy: 100
Mineral: ?
Gas: ?
Energy Detection (Passive Ability)
Description:
Ghosts passively detect units with an energy bar, even within the fog of war. This does not enable them to target or Snipe opponents within the Fog of War.
Researched at: N/A
Energy: N/A
Mineral: ?
Gas: ?
Jackal
Description: The Jackal is a fast vehicle similar to the Vulture, equipped with four wheels like a buggy and armed with a flamethrower. Notes: The Jackal's attack does splash damage in a line, targeting one unit but striking all units along the line. The Jackal must stop in order to attack. It's speed allows it to chase down slower units. Has an Upgrade to double the rate of fire. Stats
Built by: Gateway
Required: Templar Archives
Type: Mechanical
Health: 75
Speed: Fast
Psi: 2
Mineral: 100
Gas: 50
Build Time: 30s
Ground attack:10 (+3 vs. Light, +30 vs. Armored)
Attack Speed: Normal (Fast)
Range: 6
Armor: 1
Size: Armored
Crucio Siege Tank
Description:The Crucio was designed to correct the perceived deficiencies of the AAV-5 and entered Dominion service as the AAV-5's replacement following the Brood War. The new turret layout features an upgraded assault-mode armament package so that the Crucio can fend for itself more successfully in an open battlefield. Force deployment costs for the Crucio have increased over the older Arclite, but the increased versatility of the powerful new siege tank more than compensates for the additional expense. The Crucio features twin 90mm cannons and has retained the 120mm Shock Cannon. Notes: Fire power has shifted from the tank mode to Siege mode. Stats
Built by: Factory w/ Tech Lab
Type: Mechanical
Health:150
Energy: N/A
Speed:Normal
Supply: 3
Mineral: 175
Gas: 100
Build Time: 50s
Ground attack:15
Attack Speed: Normal
Range: 7
Armor: 1
Size: Armored
Abilities: Siege Mode 
Description:
Allows the Tank to enter Siege Mode, and becomeing a stationary Artillery. Siege mode's attack and range has increased.
Researched at: ?
HP: 150
Minerals: ?
gas: ?
Speed: Stationary
Ground attack: 80
Range: 13
Armor: 1
Size: Armored
Thor
Description:A Thor is armed with a pair of "Thor's Hammer" Particle Accelerators (fired from the arms) and Flak Cannons (for use against aerial opponents) mounted on the shoulders. A Thor has a relatively large size when compared to other units. It has a long firing range and splash damage. Notes: Thor's primary roles are to attack air units and to "push", leading charges against heavily fortified enemy positions. Its anti-air attacks have an area of effect which is devastating against small air units such as Zerg flyers but is inefficient unless the air units are tightly grouped. The attack deals poorly with heavily armored air units such as Battlecruisers. The Thor has been shrunk and can move faster in order to better suit its anti-air role. However, its anti-ground attack was weakened, and it has the same speed as a siege tank. The Thor can self-repair. Once a Thor "dies" in combat, its wreckage remains on the battlefield. The Terran player can spend resources to relatively quickly rebuild it. The enemy player must decide to either destroy the vulnerable wreckage or target other units. Stats
Built by: Factory w/ Tech Lab
Required: Armory
Type: Mechanical
Health: 300
Shields: 300
Speed:Normal
Supply: ?
Mineral: 300
Gas: 200
Build Time: 60s
Ground attack: 10 (+10 vs. Armored)(x4 attacks)
Air Speed: 4 (+2 vs. Armored)(x4 attacks)
Attack Speed: Normal
Range: 6 (vs. ground), 10 (vs. air)
Armor: 1
Size: Armored
*All Values are subject to change between the time of writing and release. Values based on WWI '08 build.