i'd like to see placeable ai spawns for all types of covenant in campaign (that drop to the ground in phantoms or just spawn), flood variations (flood pods that drop from the sky with certain types of flood or just spawn), and your allies such as marines which get dropped to the ground by pelicans, and odsts, which drop in drop pods. with the ability to respawn, and have a respawn time or set the enemies to spawn in waves (to create a something similar to -blam!- zombies in cod waw), and you could increase the amount that spawn each time new ai spawn, such as having a multiply current ai spawn by 1.5, 2, 2.5, 3, 3.5, or 4 each spawntime
i would also like to see a special map that is completely empty, with just a gridlike base similar to sandbox, except there isnt anything to stand on, but you can place buildings, rocks, cliffs, houses, rivers, streets, streetlights, warehouses, downed pelicans, downed phantoms, brick walls, wood fences, broken brick walls, add oceans, add lakes, and any other kind of scenery possible, with no item limit, so if the map laggs to much, its the mapmakers, fault, and they have to change it.
with both of those features, you could probably make your own campaign missions.
please add what you want to see in halo reach's forge mode.