Talk:Nightmare Mode (SAS4)/@comment-98.249.232.19-20160103160231/@comment-24659969-20160104235921

Then, they could be have very high damage reduction and/or HP regen. It is possible to achieve 99% damage reduction after all, that would leave a 1000 damage zombies to 10 damage only.

Also beware that since this game for PC runs on browser plugin, desynch is very common. When you see someone got hit and pushed around could be actually they have already moving about few steps away.