A hidden perk in Modern Warfare 3 only unlockable through the all perks bonus achieved at an 8 kill streak on the specialist strike package.
It allows you to spawn right behind your enemy and allows your bullets to follow people around corners.
Player 1: Dude what the heck I made it behind cover and he still killed me, how did he do that?
Player 2: He's probably got Homo Pro on....
Player 1: Woooow! What a try hard!