If you want scripts / features made for you, then contact me by PM or email / skype etc it will cost you tho so if you have no intention of reciprocating don't even waste my time
I was going to make a map for me and a friend to play. We can do LAN because we live close, so I guessed we wouldn't have the network issues. I'll try it over the internet and report back the results with 64 zombies.
I think the network limitation would be because of bandwidth limitations for typical players over the internet. Since LANs usually have more bandwidth available than over the network, I didn't think it would be an issue.