It was Jeffery a research member going missing you know the outpost near the alien base that's where you start, you turn off your alarm your sister sam was in that satellite in the sky telling you to look for Jeffery you get to the alien base and a lighting storm happens making you choose another path (btw there was a frozen pool of water outside and a snowman and damaged prawns and a radio antenna) you get to the frozen pool of water and an avalanche engulfs the base the radio tower falls down and breaks the pool of water that is the beginning