I absolutely love the introduction cinematic, with closed AI and the voice acting, it really is legendary XD
Otherwise, the 'h' in the font you've chosen really looks like a 'k', and that was a little disorienting, I thougkt I kept seeing typos :)
As for the gameplay, it was quite hard (I barely stayed alive 2 minutes), but I didn't mind dying so much as having to figure out which keybind I had to press. Maybe you could combine the reapairing and the turret into one button, or automatically start reloading when out of ammo :)
But overall very cool :D
Also, I personally appreciate the Linux build :)