heres something i found out and dont know if anyone else has but you can do it any where but its a good tip for going around walls slow, and low to the ground. alright hold the left/right d-pad down and then move to your left or right with the left analog stick and your guy moves slow but faster than prone and a smaller target than crouch and yes you can shoot. :)
I'm positive everyone on this site knows that, but yes that's a great tip, good so the enemy can't see much of you when your sniping, maybe a bit of your arm, and your gun, good tip.
Do this in the wide open and own people with it. WHile leaning to the right or the left, walk around and embaress people if you kill them. Its quite fun to do.
But really, I knew you could do that, and it is helpful in certain situations rather than exposing your whole body to the enemy.
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"History will be kind to me for I intend to write it." -Winston Churchill
what i do is when i get close to a corner i just stand facing the corner and so none of my body is exposed of and then i know where everyone is and ya thats about it.
Moving while you lean is a perfect way to adjust yourself so that you can just barely see around the corner (in 1st person), therefore making you the smallest target possible to see.