For Halo4 they should make a forge were you can add enemies or allies to a map. For things like obstacle corses were u have to hurry away from an invincible elite carrying an energy sword or something like a campaign sequence. I know this would be extremely complicated, but they could make it a separate disk or something. i would like to hear your thoughts on such a matter.
i would absolutly love this! you could expand custom games to a whole new level, not to mention forge/ muliplayer. you could also control what diffculty the enemies are like between 1-10or 1-20?