stuff i would like in halo 4 forge
despawn item option: so you can set am object to spawn in 30 seconds then after it spawns it will despawn in lets say 45 seconds
glue objects together then save as a nameable object: then put into an "other" folder in your forge menu then place it in other maps, it will cost the same amount as all the pieces you used for the price but would not deduct the objects left #. to balance it out, you will be unable to take apart the "copy, pasted" object unless you go back to the original object then edit it.
a greater height limit in maps for forging: you know the spire map, imagine a height limit TWICE that you could do so much more in a map.
legit odst drop pods with "pod launchers" as one object: this would work well with the raised height limit.
rag doll bodies that don't despawn and placeable blood splatters: imagine the picture of a spartan stuck to a wall with an energy sword through their chest with the Spartans blood splattered against the wall behind him. best infection game ever!
a "zip line": you could make a sliding door by making an opening then just have an object in front on a "zip line" that will move upwards and open the door at a specific time in a game. this will add great cinematic value in objective games or infection.
and i know that this will be possible for 343 to accomplish because the ideas aren't too insane and ridiculous.