"Let's go! Let's go! Out the door before this thing blows!"
— Echo One-One if the player doesn't immediately jump out of the plane in Mile High Club
Echo One-One is the callsign of a Task Force 141 member who took part in rescuing a hostage in "Mile High Club" alongside One-One Team. He, along with Romeo One-One, Charlie One-One and the playable One-One Operative managed to fight their way throughout the plane, rescued the hostage and parachute to safety. Before Echo One-One could leave the plane however, a bomb that had been set by the terrorists on the plane exploded, killing Echo One-One and destroying the plane.