[Hidden Deep] Third Chapter : Day 31, Lost

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3rd chapter of Hidden Deep, "Day 31, Lost".
In this chapter, we start as a soldier and go to rescue a lost engineer named Hennigan.
The base mention about another MIA named 'Vernon', but we can't find him because he went to find a way but didn't come back. Because there is a sourceless blood pool under a ceiling tentacle's hole, so I think he is already caught and eaten by the tentacle.
In this chapter, we can get an assault rifle as first of this game. I usually use it to treat spiders.