Duck If You Love Life Trophy/Achievement
This is a very easy achievement/trophy and is done during an unmissable encounter with Jack. On your way to get the Red Dog Head which is tied up in the chain you will be ambushed by Jack and kicked down into the morgue. After shooting him a few times he will go down and drop the axe so wait for him to get back up and he will tear open the mesh and take out an X-Blade Chainsaw. Once he has it he will charge at you so simply duck as he charges and you will unlock the trophy/achievement.