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It is only Yana's leg armour sticking out of the soil layer, and the Focus scan only shows where her body would be. So she would definitely be viable for nano-consumption.
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** The audio datapoints of Corporal Yana Mills and Sergeant Usizo Wandari give us a glimpse into what those soldiers experienced. You can hear a ''horrible'' grinding noise at the end of both, but in Wandari's, you hear him call out to Mills as she screams in pain during that grinding. From what it sounds like, a Faro robot was in the process of ''consuming'' Corporal Mills via Biomatter Conversion.