Greetings, Devil Dog! Welcome to the Call of Duty Forums. It looks like you're looking forward to Call of Duty: Modern Warfare 4, but haven't created an account yet. Why not take a minute to Step 1: Turn Power On
Step 2: Head towards the main spawn
Step 3: Call Minecart
Step 4: Go to Minecart and hop onto the PowerSwitch
Step 5: Hop forward towards the Fence once on the ledge turn right (with your right stick) and hop across towards the rope
Step 6: Once on rope crouch and position yourself in between the rope (don't go to far left or right or you will get hit)
Note: You can have full Team up on the glitch.