Not to understate or be insensitive, but there is a LOT of people requesting Halo 4 pepakura models, which requires making a 3d model (Google Sketchup, Blender, Maya, 3ds Max). Of which there isn't a lot of people on here who know how to do it, and are learning or scouring, or moving on to different projects, or scratch building. You can put in a request to Rundown and Satchmo III, but those are no guarantees and most likely you'll have to pay if they would do it. So you should take a look at your options and decide if you really want this and how hard you are willing to work to make it. Good luck.
-Seth