And then... Then we hold the line, for as long as we can. I talked to Durney, Ciello and Dallas, and we all agreed - surrender is not an option.”— Private First Class Henry Hodges
Ciello was one of the soldiers fighting the Chinese invaders when they first attacked Anchorage, Alaska. At the time, he was with his friend Henry Hodges. One of Henry Hodges' Holodisks explains how Ciello died. Ciello was being handed some ammunition from Henry Hodges when a shell hit and exploded, killing Ciello.
It is unknown whether Ciello actually existed in the Fallout universe and whether he is "real" since his only mention is inside the Anchorage Reclamation simulation which is not historically accurate.