It would be pretty cool, but might not work very practically as part of the point of halo is to attack people from really imaginative spots and that would kinda ruin that part of the game if everyone knew about them. As for the guy talking about spawn camping that is pretty much impossible in halo as it has zones which you spawn in not points and there are an insane amount of calculations going on to decide where you spawn such as proximity to allies or enemies, which weapons people are using, that kinda thing.