I think all but maybe one survived Fifield when at the end Janek and Chase both shot and hit him with a flame thrower. The driver of the vehicle must have survived. At the end I also don't think all the surviving crew members other than Vickers, Janek, Chase and the Asian guy went out with Weyland and we know what happened to those that did.
Perhaps the answers you seek can be found here: [url=http://www.prometheus2-movie.com/community/forums/topic/10860]what happened to all the background guys?[/url] [url=http://www.prometheus2-movie.com/replies.php?id=11776]Fifield's victim comes back to life.[/url] If you type the subject into the handy search function provided on site or use Google (Prometheus2-movie.com) , you can read though some fantastic older posts people have written here. I often do that when I am looking for answers and insight into questions I can't find answers to. It's also a useful to verify if a subject has been posted already. **When searching a topic, use Google for post bodies and the "search" function provided on this site for post titles. *locked/duplicate thread