You have to kill 72.000 zombies in one playthrough to obtain this trophy / achievement. There are 2 methods to get this done: 1. Make use of the SUV 2. Make use of the Bike Combine both methods, so it won't get boring. When you use the bike, attach the chainsaw first to get extra power. The magazine locations for both types of vehicles are shown during the video. You have to do all case files, this will give you more time later on. Time is what you don't have for this one, so hurry up and don't play around with anything else. If you see that time is running out but you still have to do lots of kills, then try to get into overtime mode (a bonus of 48 in-game hours). Overtime mode will be unlocked by completing "the facts", keep katey alive and give TK zombrex. The rest is simple, just drive up and down the silver strip / fortune park / platinum strip with the vehicle of your choice. Take a look on the given milestones from time to time to make sure you're not too slow. SUBSCRIBE: http://www.youtube.com/subscription_c... ~~~~~~~~~~~~~~~~~~~~~~~~~~ Follow Me: http://www.powerpyx.com / powerpyx / powerpyx / powerpyx Contact Me: [email protected] ~~~~~~~~~~~~~~~~~~~~~~~~~