You can't. =(
u cant
no because yoy cant vget to it
You can't unless you use mods.
Go into the place where you can spawn stuff and spawn a platform and just rotate it like a wall.
You can't on the regular game. But there might be a mod for it
You can't. The only way is to mod which is illegal
you cant saddly there is proble a mod out there thoe
You can't drive a pelican in Halo 3.
The map "Forge World" in a Halo: Reach is just a large map with nothing on it, other than like trees and rocks and stuff. There are only 4 items which you can place in Forge mode on "Forge World". 3 of which are in the spawn category.
It's quite simple really, you don't. It is completely impossible for a typical user to be able to spawn any type of AI in Halo 3's Forge mode.
monitor mode is only available in forge mode and when you are in it you can spawn alot of stuff such as cars, scenary, weapons, teleporters, and spawn points.