I think that knowing in advance how Mr Scalzi will be messing with the trope, and by extension with your head, would somewhat ruin it.
If you haven’t read Redshirts yet, I strongly recommend avoiding any review that gives spoilers beyond what’s on the front cover: They were expendable…until they started comparing notes.
I’m going to follow my own recommendation so that’s the only hint you’re getting here. 🙂
Personally I enjoyed Redshirts a lot. Redshirts is a short, well paced, novel (including the codas), that works well and one that I recommend for a light read of a morning.
Since it is entirely appropriate I’ll end with the theme song for the novel by Jonathon Coulton: