Translation: we listened to the community about what need to be done in order to make versus worth playing, then we decided to put it in the sequel and not fix it in the first one.
I like the idea of only 4 people. It'll help with team work if there are so few, more goals will be accomplished. For example in Brainbread, there are say 20 people, only 5 of them end up trying to progress the map, the rest usually just kill zombies.
Also it will increase the server count a lot.
I didn't like ZP a whole lot. BB was so much better. I can't wait for it's release, I've been thinking about trying out my very rusty modeling skills or noobish mapping skills for the mod, but I doubt I'd be able to mak any signifcant contribution.