Explosive Ordnance Disposal 2nd Class Bradley Kelly, assigned to Explosive Ordnance Disposal Mobile Unit (EODMU) 2, takes a tactical position after rappelling from an MH-60S Sea Hawk helicopter, assigned to Helicopter Sea Combat Squadron (HSC) 9 during a fast-rope exercise aboard the aircraft carrier USS George H.W. Bush (CVN 77). George H.W. Bush is deployed to the U.S. 5th Fleet area of responsibility on its first operational deployment conducting maritime security operations and support missions as part of Operations Enduring Freedom and New Dawn. (U.S. Navy photo by Mass Communication Specialist Seaman Jessica Echerri/Released)
Though that appears to be fast roping, not rappelling.