OK, new thread time. Been discussing it with a couple people and here is where it's at:
Gonna remove the tunnels cause they suck. It will be replaced with large "park" with cottages dotted around. Access to the park will be restricted to people with the proper passcode (ill get into that later. need to script it first).
What I'd like from you guys is to take a look at mh-winter. I "borrowed"

the cottage from there, so each person will get one to decorate as they wish. Each cottage will have a locked door that only you can open if it is yours. Now please if you are interested, let me know. Once the "park" is set I wont be able to keep adding houses. This area will not be game relevant, and other non-members will be able to see it via a tunnel (as in remix glass enclosure to start the zombies) but not go in unless they have the pass key.
Also any ideas on the main city additions are welcome. I'm retexturing it all so it wont be boring. Any mappers that would like to help, please let me know!