I do some how want pelicans being able to have a pilot in war games/forge, But of course, we need a big map for that, Maybe any DLC that focus on big maps? Maybe an spartan ops mission you need to move around team mates and soldiers.
It’s all about the Hardware of the 360 here. You can demand a DLC of huge maps like forge world but in the end, Halo 4 already pushes the 360 to it’s very limits. I honestly think having a massive map like for world on Halo 4 without a complete over-haul would probably make some Xbox explode.
The suggestion, however, could be likely for Halo 5 on the next gen xbox.