User blog:Cheezitman/FOR HALO 2 (part 4)

Scarab Gun
There is a unique gun in the level Metropolis in the single player mode of Halo 2. It is located on top of the bridge connecting two buildings after the tunnel. One method of reaching it is to jack a banshee and fly it through the tunnel. This is much easier on co-op. Another method is to use the flying sword exploit in conjunction with the marines and the warthogs.

If you are on your own I would recommend shooting the wings off the banshee before you jack it so you can easily get through the tunnel. As soon as you jack it push forward even when you’re still throwing him out, so it doesn’t blow up.

Once you’re out of the tunnel fly up to the first 2 buildings with a bridge connecting them. The gun is on that bridge but its kind of hard to see so fly low over the bridge. It is in the form of a plasma rifle and fires bursts similar to those that come from the wraith.