MP mods do indded take a much longer time. Plot development + gameplay is a very hard thing to do. When you have a large group of people, spanning all across the globe, its gonna take a while for things to get across.
And by the time you finish it...no one gives a flying fuck because the next game comes out. For example. BHD mod for MOHAA or German front mod for COD
"I'm a dog chasing cars. I wouldn't know what to do if I caught one. I just *do* things. I'm a wrench in the gears. I *hate* plans." - The Joker http://pressthenyckbutton.blogspot.com/