I'll get to you on this when I'm on a computer, but I have some ideas about the snipers rifles and a rank system. Meanwhile, Kung, why don't you take a trip over to the UP zombie server? I feel they have a pretty decent ones that only would require some tweaks here and there to make it very well suited for themselves.
Also, please bring things like this up in the think tank, otherwise it's existance is pretty much useless