I may delete this post after a while, because of its "spoiler" strategical nature. I just felt a need to post this, since it will greatly effect information that older players give to younger players.
Many areas have been adjusted. I will be as vague as possible while still being helpful:
1) the desert can now be hunted for zombies without fear of crazy scorpions... because the scorpions are now good for the same people to hunt.
2) the ogre village is now a good place to hunt if you are levels 25-27.
3) lvl 17 and 18 people should not forget about the grassland south of the farm
4) the creatures in the tomb that are found together in the same areas are more similar in power, making hunting easier.
5) soul leaches, ogres, giant ants, some western mountain critters, lvl 30+ strange creatures, lvl 30+ beach bums, lava titans and their fiery snake friends all went to rehab and kicked their collective steroid habit
Please remember that if there are any spawned creatures from the old versions, those must be killed off (or at least damages so they expire at the end of the hour) before the new versions will spawn. So if you come across an old lvl 16 scorpion or something, don't come posting about it being a bug. Its just a leftover... and you helped by clearing it out.