Well, the song "Smell of Death" by Lynrd Skynrd was written about my flatulence.
"Ooh, that smell.
the smell of death surrounds you."
But yeah, that is why we need to have friend with a Cat 420. Actually, when we have talked before here about SHTF scenarios, my mind immediately went to the logistical problems you are talking about.
Great, we are all crack shots and nail the bad guy every time. Drop him where he stands. Something has to be done with that sack of rotting meat.
Someone has to scoop up the remains and dispose of it. Funeral pyres? Mass graves? Where? Do we have enough lime on hand?
What if we have some guys to provide security. How do we tell them apart from jihadis or whatever? Maybe some distinctive clothing? How about a way to mark the vehicles they are in so that we do not target them by mistake? What if they make mistakes? How do we correct and punish that? Maybe some kind of review process? What is that called?