MAP: http://www.bungie.net/forums/posts.aspx?h3fileid=38928370

"After many years of testing new Spartan armors, weapons, and vehicles, the Expirementers left this old base to be. But the Spartans came back to this base to retrieve the old information before the brutes got their hands on it first. 6-16 players recommended."

This is by far the best of my work. Saving and ending, setting to no and yes, restarting rounds ALL to perfect this map. Each team starts in their own tunnels, which both end up inside the base itself. one team ( attackers ) gets a chopper, and the other team ( defenders ) gets a rocket launcher to blow up said chopper. talk about a crazy start! The middle of the map is nice and open, giving free room to drive, ( OR dodge! ), vehicles. the back on the map is mainly the tunnels, and one tunnel stops for an overshield. The front of the base is by far the best looking and best battle stage. there are things to hide behind, and not to mention it holds almost ever weapon on the map!

- but the secret of the map lies above you.

http://imageshack.us
http://g.imageshack.us/g.php?h=102&i=steeltrain1ob3.jpg

when you look up, you see the hardest of my work. A sea of bridges for the ceiling, and 5 towers hovering above you.

EXTRA SCREENSHOTS:

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http://g.imageshack.us/g.php?h=114&i=steeltrain2zv0.jpg

A view of the middle "Vehicle" room and the entrance to the 3 tunnels.

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http://g.imageshack.us/g.php?h=126&i=steeltrain3mx0.jpg

A view of the "Battle!" room, along with the 3 connected towers.

http://imageshack.us
http://g.imageshack.us/g.php?h=517&i=defendersjy9.jpg

The Defenders room. small but power packed. *points at rockets*

http://imageshack.us
http://g.imageshack.us/g.php?h=517&i=attackersgj8.jpg

The attackers room. bigger, and there's a sword under the chopper. *hint*

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http://g.imageshack.us/g.php?h=517&i=hallwayea8.jpg

... It's a hallway. you asked for more, I gave you what I could.

http://imageshack.us
http://g.imageshack.us/g.php?h=115&i=belowgv9.jpg

The view from below. the bridges don't look crappy and you can see the giant towers!