And thats interesting does it mean if say I come across a horde of 100 zombies and then go somewhere else those 100 stay spawned in? So if my max zombies was 100 I would not get any new spawns elsewhere from 'natural' spawns?
Also a question on horde count, I have noticed via stats that it has been steadily decreasing during game time, from 100s to now 50. Previously it always seemed to stay at a steady amount 400 to 500, not sure why it keeps dropping.