That's a step in the right direction. I have always wanted a Star Trek show called "Red Shirts." The show would never even show the captain or bridge crew, but instead would focus on lowly red shirted ensigns sent down to a planet to explore, only to be horribly killed by some creature. The rest of the show would focus on PTSD related issues in the crew.
I'm guessing you've probably already read it, but if not you should take a look at "Redshirts: A Novel with Three Codas", written by John Scalzi. I think he stole your idea.