The following article contains an answer for the question: What was real Waco's name? , can you please find it? 

In 1945, on a Pacific island, Sam Gifford is busted from platoon sergeant to private and reprimanded by his battalion commander for striking an officer. Because he had earned a Silver Star, he is given a choice of being sentenced to the United States Disciplinary Barracks in Leavenworth or transferred to George Company, a de facto punishment company assigned to a dangerous area of the front lines. Gifford chooses the punishment company, which is commanded by Captain Grimes, a former First Sergeant. Captain Grimes insists everyone call him "Waco", wears no rank insignia and forbids military salutes lest he become a target for snipers.  Everyone in George Company hates Waco except for some pre-war regular army comrades-in-arms Millard and Swanson, who act as Waco's personal bodyguards.  Impressed by Gifford's combat record, Waco offers him a membership in his private circle as a radio operator. This ends when Gifford beats up Swanson for making suggestive remarks about his wife's photograph. Waco burns the photograph. The incident triggers flashbacks in which Sam relives the path that brought him to this purgatory.

Captain Grimes