This is the final version of my latest, as well as final map, for Halo 3. It is an interesting map, IMO.

Official Gametype: Relic Oddball
Mechanics:
6-10 Players recommended.
You have 30 seconds to get ready. In 30 seconds, the balls spawn. The catch is there are 2 oddballs. Fight to get one, and make sure nobody gets the other. 5 Second ball reset.

Link to Official Gametype:
Bungie.net : Halo 3 File Details

This map is my best-forged map. Almost all of the map is ghost merged. It has a lot more cover than the Beta version did, and I personally like this MUCH, MUCH better. I edited a few things and made it suitable for 3 gametypes.

The map is a symmetrical map.

The interesting thing about it, honestly, is that it looks hectic, but actually is a very fluid map. By this, I mean the flow of the map depends on the gametype.

Slayer - Around edges
Oddball - Inward
Juggernaut - Anywhere

The inspiration for this map came from a few things.
1. The Pipes on CoD MW2's Rust
2. Old Japanese Shrines
3. Oriental Walkways
4. Modern Art Structures
5. Oriental Structures

Map Download Link:
Bungie.net : Halo 3 File Details

Overview of map

View from Shrine Top

View of Metal Garden 2

Frontal View of Metal Garden 2

Ledge

Mini Tunnel

View from Hill Top

Another view from Shrine Top

View of Metal Ridge 2

Thanks for viewing!

Just so you know, there really aren't Callouts for the map. Those are just what I call them :P