I remember seeing a while back a map called "Halo Wars" or something. It was a sandtrap map with vehicles on both sides. The interesting thing though is that it had spartans and elites on both sides. They really didn't do much but sit there though. Still, is there any way to get NPCs on your forge maps?
This is called "modding". It is against the rules (ask Bungie, they ban people every day for it), and every site (unless you go to a site specifically for it) will ban you for modding as such. :shiver: