Published on January 15, 2009 Though that is a very good tip Tyler, the best way to do is is go to the entrance of the maintenance tunnel drive the red car into the tunnel and take two lefts continueing to run over zombies when you get to the white van get in it and take it back out of the tunnel and repeat the process untill you have 1,000 kills this can also work on getting the 53,000+ kills
Published on December 15, 2008 this is best done using weapons and not your bear hands however there is an Achievement for using just your bare hands. All you have to do is every zombie you see just kill them and try to stay realitively far enough that they cant grab you because if they do that enough you might die. So pick up a 2/4 or lead pipe and just wack the crap out of them 100 should be no problem within the first 5 minutes of play so repeat for an hour and you should have no problem getting this Achievement.