It’s Screamers. They are mining and in a kind of civil war. They refer to a group mining Berynium on Triton 4. The also refer to the red cigarettes in at least two scenes. Here is an excerpt:


>The funny thing is, I can't remember what she looked like.
>
>Liar. 
>
>Automated voice over loud speaker:
>
>Attention, all personnel.
>
>Warning, radiation alert, please light your reds.
>
>Oh, I left mine in the office, you got one?