Here's an idea that could increase player/zombie interaction (for better or worse, depending on who you're around at the time). Lower the temperature on the map to what it is at night and remove heat packs. This will force people to either head inside (which will only increase temperature slowly) or make fires (which will increase temperature faster, but will attract players and zombies). I wouldn't, however, make a warm clothes skin for general use. I would make it the hero skin, which would actually make it worth trying to get.
The added benefit for PvP players is that it gives them something to hunt.
Then make matches and hatchets easy to find, but hunting knives slightly scarce (to make it harder to get food).
The added benefit for PvP players is that it gives them something to hunt.
Then make matches and hatchets easy to find, but hunting knives slightly scarce (to make it harder to get food).