What information do we get about the war in this scene? What about mark?

Randy tells his story. After the attack, the Air Force went over to Kenya, Africa, and he came back to join the D.C. in the hopes of finding his wife and kids. He gave up hope when he saw how completely Orlando, where they lived, had been annihilated. He breaks the news to Helen; Mark is most certainly dead. Hart and his team take notes as Randy tells them how Fort Repose has managed to survive.