I'm just on Vic for the moment, and the only place that I've found green eggs so far is around Sleepywood... the Deep Forest maps.
Why did Nexon make the eggs so hard for the lower levels of each division? Yellow is uber-strong for level 8... They were fairly easy, but still required lots of alertness, at 29. But it takes me 4 claws to kill the greens at level 30, and they 4-hit kill me... With that kind of spawn, it's dangerous. I died right after my first green egg dropped and I had to leave it there. I almost cried. x___X