Just a silly noobs suggestion; How about making other people less of a threat? If you give people the option to surrender, raise hands, wave white flag, others will less be inclined to shoot them. There are 3 reasons to shoot a stranger; for fun, to steal their stuff or because you fear them. When I see someone in DayZ they often forget or mess up lowering their weapon and come running towards you waving an axe or pointing a gun. If you have the option to disarm and raise your hands, at least one of the motives to kill becomes less of an issue. When someone comes towards you with their hands in the air, you will probably at least talk to them before shooting them. See what they want, if they can help, if not, they can run off and you both go your own way. It has happened that I've been badly wounded and willing to trade all my very cool stuff just for a medic pack, you walk up to people typing and voice chatting; don't shoot me! But it rarely works. Being able to surrender may. It will also add an extra level to the game. Imagine what could happen if you find someone who surrenders, you can tie their hands, take all their stuff and take them along on your journey. They can be zombie bait, you can make them explore dangerous areas, you can trust them with jobs like carrying all the food, send them out to talk to strangers, make them chop wood and eventually after a while you can decide to let them go or make them one of your unit. I wouldn't want to be a prisoner, but when you're wounded, dieing of hunger or thirst, you'll do whatever it takes.