its the same thing though in each. If i have to be utterly honest its the same as way back in alpha. never ending spawns of differently named same shaped things fighting endlessly with no apparent progression until the devs say that someone won and advance the loosely connected story in the direction they want it to go.
Sorry probably wrong thread but theres nothing new in these things from Alpha. Roll on the "content" improvements where you feel you are actually making a change or anything.