KeenGamer: “Struggling with World War Z’s Challenge Mode this week? Don’t worry, everyone is. You can run, shoot from a distance, or even get a good headshot this week, making the overwhelming hordes of undead just a bit more deadly. We’ve got you covered with some tips for each part of the mission, Deep Seas Stroll though, as well as some tactical pointers that should help you avoid losing at any point during World War Z Just Body Shots.”
Source: N4G PC World War Z Challenge Mode Guide: Just Body Shots