I was thinking on getting the MD5 hash of the current XeX In use (to prevent people just changing the name from default.xex), and checking it on the server, if its different, then fail to load the map.
You really are unconscionably stupid.. Its almost the same engine, if people can mod from the end of Halo 3, they can mod from the start of Reach. So Reach (GotY nomination) would be ruined and flawed by retards. I hope the KV pool dries up soon.