When I said they attack at the same time, I should have said they coordinate so that one gets the advantage. Also, I think this user has yet another username which contains the word punky and the number 206. And they play the same games.
Why?: I feel that all good maps so far have interesting histories or are part of a larger Idea (lord of the rings, which in my opinion should be expanded). The gangs of NY promises to deliver a little of NY Trivia.