It's an interesting start, if a bit generic. Granted, it is hard to create a unique start to a Fo:E sidefic at this point. I'd recommend making a prologue chapter or something along those lines. Even if it doesn't give context to the characters, I'd like to know a little bit about the area they're in.

I'll track this story to see where it goes. I'm hoping for some character development as the story progresses.

Your book has been advertised on the new facebook group page: https://www.facebook.com/groups/foebooks/ :)

It's nice to see a FoE story that isn't littered with typos from the get go, even if there are still a few here and there. Whatever the case, I know the pain of trying to write a Fallout crossover and putting your heart and soul into the tale, only to get unexplained hate and downvotes for it. Hence, I hope that my thumb up can help your story achieve what you want it to.