On the last level of halo 3, there are 2 glitch paths formed on the side of the mountains where there platforms do not fall. On the savepoint, and the final stretch to the ship, there is a path when you first come out of the tunnel. Keep going straight until you hit the mountain. There is about a 15 minute walk around the map with plenty of glitches and awesome views. You need to know how to gernade jump at somepoints and it is useful to have a fuelrod gun that you can get from some guys in the tunnel.

oo nice i didnt know that i knew that somewhere there thers a moongose