'Exploring' outside of the intended area of any scenery is an EXPLOIT. If you pay attention to the new terms of use now these days. Exploits are violations to the Terms of Use and you can get punished for doing them. In Halo 2 and Halo 3, it was easier to 'explore' but it still falls under the category of cheating and players still got reported and banned for misusing 'exploits'. For example, who remembers the infamous 'Super Bounce' cheat in Halo 2? Invisible barriers are a way control areas because believe it or not. Players finding these little cheats are not at fault, it is the company who makes the games who takes the fault. So, you might as well delete that part of your moanings because I already can tell you intend to cheat. Nasty thing you.