Unique Controller schemes

Best Halo player I've ever met played southpaw legacy with bumper jumper. It basically allowed him to swing the sniper rifle left and right for quick scopes without having any vertical movement on his reticle. Only tournament level player I have met that didn't use default. Most of us use default non inverted bumper jumper with 3-6 sensitivity. I have a cousin who is BEAST at Modern Warfare using 10 sensitivity. Drives you crazy to watch him play but he can turn on people incredibly fast.
 
wrap your heads around this: 
  

DEFAULT:

SOUTH PAW LEGACY:

I can't stand playing lefty, even though I'm a lefty for most other things. My buddy makes some money by buying Xbox controllers, soldering them into Lefty controllers and selling them online.

I always bind crouch to clicking in right stick and B is always melee. Its just weird any other way. I usually put the sensitivity way up as well