The USS Jeffrey Michener, which appears to be one of the new Gerald R. Ford-class aircraft carriers, is shown heading into the warzone with an empty flight deck, there are no planes or helicopters on deck. There are hangers below deck for repairing and maintaining aircraft, but they can only hold a portion of the carriers complement of aircraft. An aircraft carrier without fighters, gunships and helicopters is next to useless in a battle, carriers themselves have no offensive weaponry, only defensive. These carriers have two deck mounted missile launchers that fire Sea-Sparrow surface to air missiles for defense against aircraft and RIM-16 Rolling Airframe Missiles which are point-defense weapons for shooting down anti-ship missiles. They also have three 20mm Phalanx CIWS point-defense cannons for shooting down hostile aircraft and missiles at close-range. So it could help defend against attacking aircraft and missiles, but would not be able to help with offensive attacks.
Admiral Slattery Tells Tom Chandler that his Grandfather drove a landing craft at Normandy Landings. All of the naval personnel during the D-Day landings manning the landing craft were members of the Royal Navy. This goof also appears in Saving Private Ryan and the Medal of Honor games.
While most of the Allied forces that landed on the Normandy beaches during D-Day were US, British, Canadian and French Army/Marine Corps infantry and British and Canadian Royal Naval, some of them were also US Navy, Admiral Slattery's grandfather piloting a landing craft is not a mistake. The landing craft were piloted by sailors from both the British and US Navy and Coast Guards, one of the landing craft pilots went on the become a famous baseball player: Yogi Berra. There was also several squads of US Naval Combat Demolition Units that landed on the beaches to clear mines from the water and tank traps from the beaches. When D-Day was being planned sailors with EOD experience were asked to volunteer for a "special mission", but first they had to undergo a vigorous training regimen called "hell week". This regimen was devised by Lieutenant Commander Draper L. Kauffman, the tough training was designed to weed out individuals who did not possess the physical or mental stamina needed to perform under the conditions they would be facing on D-Day, especially at Omaha Beach, which many likened to being in Hell. The training course known as "hell week" was so effective it was made a part of the Basic Underwater Demolition/SEAL (BUD/S) course that all prospective Navy SEAL's must pass, it has been in continuous use since 1944.