So, our AB was messed up yesterday, and some of us decided to have some fun. I found a really cool exploit, but I haven't done so much with it yet. It's good if you want to be "AFK" leeching honour while noone can see you.
I don't know how high you can get, but I'm sure you can get higher than I did, since it was 4AM and I pressed the wrong button in the end. When you're in the spot, basically jump and press forward. It's really hard to find the exact camera view and similar to make this work. If you change your camera in the air, you'll fall down automaticly.
http://www.youtube.com/watch?v=Muw9rXFzvyw