This is the Harry Carey Jr. movie that H.C Jr. was pondering on whether or not to make if I recall correctly according to a poll on a website he had.
This movie also has:
James Arness as Adj. General.
Harry Carey Jr. as Miles Flynn.
Robert Carradine as Pvt. Tomlinson.
Rance Howard as Rev. Ruggers.
Hechter Ubarry as Pvt. Colfax.
Dean Smith is the movies Stunt Coordinator.
I think that H.C. Jr. was wanting to do this movie as a John Ford type Western. I'm looking forward to seeing this.