This episode's challenge is about handling aliens with a rifle. I had failed many times before I finally succeeded. It's best to aim NOT directly at the aliens so that one view allows you to target a few of them. Also, use the ration packs wisely or you'll have a hard time dealing with six aliens at the end.
It's sad to know that the this adventurer was captured by some brutal people. Not sure what he would in a cell with an alien accompany. And I totally forget to view the USB evidence as I was in a hurry to escape the cold icy land. :P