Nice idea, though some things are not that intuitive. I realized that I can scan people only on the third try, and that I can move on the 4th run. Also aliens stood there after being killed, blocking bullets and other people/aliens.
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I'm a Linux user; maybe you updated just Windows downloads??
And regarding voiceover, I'm not a native English speaker and when I heard the first part, I quickly turned into "meh whatever" mode thinking that there will be just a plot info, so I missed the whole speech 😅😂 Still audio cues helped to learn about scanning right in the game.