Wonder what those Terran structures with the big fans were. I suspect they were early supply depots, but perhaps they were generators and instead of supply you had “power”. Complete speculation though
They're called "Terran Power Generator" in the video, and considering how there's multiple of them nearby, maybe Terrans had a mechanic similar to the Pylons where they had to build close to generators to power their buildings? Or they could just be early Supply Depots with different names like you said.
yeah.. video for moron kids who are too stupid to learn english. Apart from that, great upload! I really really really want to play alpha... big fan of starcraft 1