There's something close, now.? You can have the game place a beam going from your death, following the tragectory of the bullet that killed you.? I haven't turned it on for myself yet, but I keep meaning to.? Camping will be a thing of the past.
Type "settings" in chat, and you'll see one of the options is the "Deathbeam", that's what you're looking for.
Maybe a future version of Mani will include an anti-bunny hopper beam.