Stay Together, Stay Safe Achievement
Stay Together, Stay Safe10
5 Survivors Were Killed While Scavenging
Before you enter a marked location you will have the opportunity to send out any/all of your survivors to scavenge. Over the course of your playthroughs you must have 5 survivors get killed during this scavenging time. Ultimately this isn't too hard to achieve as survivors take considerable damage every scavenging run especially if you don't heal/equip them well.