Map Name: Substratum
Game Type: Any Slayer game type
Description: A remake of the Halo 2 map "Foundation". It is formed the same way, and has the same weapons.
Recommended number of players: 4-12
My Gamertag is: curmugeon
The map is on my fileshare. And now @ http://www.halowaypoint.com/en-us/players/curmugeon/halo4/fileshare#!/?section=GameMap&SearchDate=7&SortBy=2&view-select=Tile&startIndex=0&details=46c6cc75-15db-43ce-b84a-70f168ac5f94