Hunting is a mission in Rebuild that produces food. Benefits from the hunter perk. You can assign survivors to hunt in parks, huge parks, and fields. Hunting is usually far less efficient than farming. Hunting in areas with zombies present will have danger.
Amount of food produced per day(avg)= 0.55*(number of hunting missions)+0.55*(number of hunters)+0.055*(total scavenging skill of farmers)
(this is based on impossible level, since food production on other difficulties is not really a problem)(actually, nothing is really a problem if not on impossible.)
Hunter perk gives a 33% bonus for the mission. More than one hunter perk on the same mission is useless.
(This may not be completely accurate but should be close enough. Lesson learned: Go farming.)