Engineering bay

• +1 bonus per attack per level for ghosts, and marines.
• +2 bonus per attack per level for firebats.

• +1 upgrade to armor per level for SCVs, marines, firebats, ghosts, and medics.

This structure can lift off, enabling it to fly. It cannot produce units or conduct research while in flight, and must leave add-ons behind.

• +1 base damage for marines.
• +1 base damage and +1 bonus damage for marauders, ghosts, and spectres.
• +1 pistol base damage and +4 D-8 charge base damage for reapers.

• +1 to armor for SCVs, marines, firebats. marauders, medics, reapers, spectres, and ghosts.

Increases the attack range of automated defenses: missile turrets, auto-turrets, point defense drones, and the planetary fortress by +1.

Upgrades the armor of structures by 2. Increases the cargo space of bunkers by 2. Also provides extra cargo space for command centers and planetary fortresses.

All structures repair themselves to 50% life. All structure fires are automatically put out.

This all-in-one safety system automatically dispatches robotic drones to put out any fires and perform basic repairs on damaged structures. Although these drones are effective at doing basic repairs, they do not have a strong enough AI to perform the more delicate repairs needed to restore a structure past half life.^[6]

Increases the attack damage of terran infantry.

Increases the armor of terran infantry. At level 10, increases the life of terran infantry by 10% per level.

Bunkers gain +2 capacity and command centers gain +5 capacity.

All structures gain +2 armor.

All turrets gain +1 attack range.

All structures gain +2 armor.

All buildings will initiate auto-repairs when below 50% health, repairing them back to 50% health.

Increases the attack speed of all turrets by 25%.

Increases the attack damage of terran infantry.

Increases the armor of terran infantry.

All structures gain +2 armor.

Reduces the cooldown of Reapers KD8 Charge by 10. When Reapers are killed, they throw multiple grenades towards the killing unit.

Increases the movement speed of Reapers, and grants them the ability to fly for 10 seconds. Reapers are able to attack air units while flying.

Reduce Sentinel Missile Cooldown by 20 seconds. When killed the Widow Mine will launch 5 Sentinel Missiles at random nearby targets that deal 10 (+10 vs. shields) area damage.

Sentinel missile range is increased by 50%, and can burrow and unburrow much faster.

Hellions and Hellbats transform 75% faster. When Hellions are killed, nearby allied units gain 15% movement and 15% attack speed for 15 seconds.

Hellions can launch a bomb that deals 20 damage to the target unit. Nearby enemies have their movement speed reduced by 25% and attack range reduced by 3 for 5 seconds.

Hellbat movement speed is increased by 30%. When Hellbats are killed, they ignite the surrounding area. Enemies in the fire run around in fear for 5 seconds.

Hellbat attacks cause enemies to burn for an additional 25 damage over 5 seconds.

Upgrades the damage dealt by Tychus and his Outlaws.

Upgrades the armor of Tychus and his Outlaws and increases their life by 10%.

Increases the attack speed of Tychus, Crooked Sam, and Sirius by 25%. (40% with full Tri-Outlaw Research Improvement mastery)

Increases the life of Blaze, Cannonball and Rattlesnake by 25%. (40% with full Tri-Outlaw Research Improvement mastery)

Provides Vega, Nux, and Lt. Nikara with Detection, allowing them to see cloaked and burrowed enemy units.

Calls down a Nuclear Strike at a target location. Nukes take 3 seconds to land, but they deal up to 1000 damage in a large area. Replaces Barrage.