: Always keep a melee weapon equipped to conserve ammunition. Use it primarily on solo zombies. Swing defensively to trigger knockback, but avoid using melee weapons when completely surrounded by a horde.
The updated UI includes a quest log. If a character refuses to speak with you, check your log to see if a specific base stat (like Strength or Scavenging) is too low. a zombies life walkthrough upd
The "upd" in your search signifies the updated content. Here's what was added or changed in the final versions: : Always keep a melee weapon equipped to conserve ammunition