This is a map spartarulz536 and I made and its called Secret Manor, or Manor for short. This is the first map I have tried to post on forgehub, but I have more. It took us about 3-4 hours to make it. Heres Some pictures EDIT: More Pictures Ahoy!
This below is the main floor

Beginning of Second Floor

Almost to the attic

The Attic, complete with viewing window :)
DETAILS-
-2 floors, an attic, a basement, and a garage.
-No weapons, because they would be pointless (see gametype below)
-Plenty of hiding spaces
-More secrets than you can count
-Lots of fun
-OMG the zombies behind me, door OPEN already! phwooosh, ahhhh! ROUND OVER...
Heres the download link...
Bungie.net : Halo 3 File Details
Let me know what you think and the gametype is a little different. Its infection where the zombie has a hammer and is invincible, the humans are not allowed to assassinate the zombie and no one respawns. there is ONE zombie.The humans have regular health, shield and all. If anyone can help me with the zombie spawning please send a friend request to blahman777. Oh yeah, as long as the zombie spawn isnt fixed the zombie has to give the humans a head start of 10 seconds. NO ONE HAS RADAR, it ruins the game...
Testers: spartarulz536 I OK I Blindman EndlessEV777 SCW Durandal and WtopdawgL