Russian churches do not have benches.
The ship attacking the Russian submarine is not a minesweeper. It was a Arleigh Burke class destroyer.
An aircraft carrier cannot be sent to the Black Sea, because the height of the Bosphorus Bridge is 64m, but the height of the aircraft carrier is 76m - 78m.
There is no MIG-35 currently in service with the Russian Air Force. Although there is a MIG-35 in existence, essentially an upgraded MIG-29, it has never been adopted by the Russian, or any, military.
The communications officer in the situation room is wearing an Army beret throughout the episode. This is in direct violation of Army regulation AR 670-1 which states "Soldiers will not wear headgear indoors unless under arms in an official capacity, or when directed by the commander, such as for indoor ceremonial activities.".
The place in Russia which Henry visiting called Novo-Peredelkino, not Nono-Peredelkino.