link to download
Bungie.net : Bungie Online : Halo 3 File Details

This is my best scarab ever, it’s also playable.
This map is split into three parts: the scarab, the docks, and a human garage.
The scarab has all covenant weapons on it. it features accurate entry points and 3 plasma cannons. The eye thing is a fixed wraith so you can bombard the humans.
The docks are the neutral part of the map, but since it’s a human dock it features all human weapons. It also has an elevator.[it doesn’t work all the time, if you have problems try crouching]
The garage is home to the UNSC side of this conflict. In it there are 4 mongooses, one anti-aircraft hog and a gauss hog. If you go up the stairs you’ll find a balcony with 2 turrets and a sniper. Behind the window panels is an armory.
This map is set up for slayer,
CTF
Assault [same as ctf]
And territories [3 territories. the base the scarab and the docks]

Pics

The big bad scarab

The bottom of the scarab

The docks

The human base

humans really do suck at making armories