I certainly hope not. Somebody asking if there is prone just shouts "I want it to be like MW2." to me, and that's something I don't want.
I don't mind if prone were in this game. Besides, dropshotting in a fastpaced game would not be the smartest thing to do.
But you will not be able to go prone in this game. However, there's a slide mechanic which you can use to slide to cover. I don't know if you can use it on ANY location.