Having difficulty with desert as far as they eye can see and then they are able to get into a rock outcropping for cover.
Maybe a little more struggle with getting up and taking cover. It is convenient that he is able to command himself to action from struggling to get on his hands and knees.

This is amazing, literally laughing out loud when I read it. Please keep writing!

oh my godness I was actually laughing out loud. This is great! Keep going!

Amazing start!