I just figured that zombies would be less inclined to rape, bdsm, D/s, and other such things as say a more sentient common enemy. So by substituting zombies for terrorists or maybe some partly devolved human, that perhaps it becomes possible to merge the two games. Perhaps not.<br/><br/>But I digress... if the decision has been made to split into two groups already, then my above suggestion is a moot point.  :-)