It was embarrassingly outperformed by a 40-year-old F-16 jet in a dogfight, can't fire its own cannons and is years behind schedule. However, the Marine Corp has declared initial operational capability for their first squadron of F-35Bs. The declaration means that the squadron of 10 F-35Bs stationed with Marine Fighter Attack Squadron 121 in Yuma, Ariz., are 'ready for worldwide deployment,' the Marine Corps said in a statement.