1. Tech Lab/Tech Reactor costs 50/25 building time life 400 armor 1 → 2 Adds on Barracks, Factory, and Starport to train advanced units and research upgrades. Changes into Tech Reactor after Commander Level 11. * Upgrades - Barracks 1) Tungsten Ammo : Increases Marines' attack damage by 1. 100/100, 60 sec 2) Medic Stimpack : Enables Medics to use the Stimpack ability. Stimpacks increase movement and energy regeneration speeds for a while. 100/100, 60 sec 3) Concussive Shells : Upgrades the Marauder weapons to slow down opponents. 50/50, 60 sec 4) Juggernaut Plating : Firebats gain +100 life and +2 armor. 100/100, 60 sec - Factory 1) Replenishable Magazine : Allows the Vulture to build additional Spider Mines to replace those used. 50/50, 60 sec 2) Cerberus Mine : Increases the blast radius and trigger radius of the Vulture's Spider Mine by 33%. Increases the sight radius of Spider Mines by 100%. 100/100, 60 sec 3) Advanced Siege Tech : Reduces the transformation time of Siege ...