Ping
I don't believe it's possible for a 44 year old man to "force" sodomy on an enlisted man.
Reading between the lines, I'd say they really felt it was an abuse of a position in authority over the enlisted men. When detected, this was the prosecutor's analysis of what sex in that environment might "mean."
My guess is that those enlisted men didn't struggle at all in this so-called "forcing."
Note that I have in the above not excused the behavior of the chaplain at all.