Actually revert, please.

Temporary reversion so that spawns will work. Multipliers will return later.

Update 1.3b
- Spawn multiplier sandbox option (NB: doesn't actually work properly yet)

Update 1.3a
- Add Loners to a couple more spots.

Update 1.3
- Rebalanced spawn rates and locations a bit

Update 1.2
- Rebalances to holster/weapon spawn rates
- Fixes for autumn/bear/tiger/sunrise outfits
- Swap SEVA zombies to use SEVA gloves
- Other misc. fixes

Update 1.1:
- Fixed a minor typo.

Update 1:
- Reduced chance of holsters spawning on all unarmed zombified stalkers.