Event Rounds / Bonus Rounds?

[dank_narre]

I've been thinking for this idea for a few seconds. I think there should be a bonus round or event round where when all the humans die there should be a round of where people can play for fun (because regular zs rounds are too boring :^) ) it can be a short round like 30 seconds long or a round that lasts a minute or two , like zombie whack a mole :^) its when all humans trying to kill a headcrab that appears for a few seconds then goes back down to the ground. At the end humans will get a small reward ( 10 points for example)