Just looking at the man's incredibly gallery is amazing!
And the very reason I hesitate in modelling any military situations.
All historic military uniforms have regulations and rigid adherence to correct form and it's those details of dress and badging that you have to get right.
This involves research and a great deal of expert knowledge that I readily confess I do not possess, and so I tend to confine my own efforts to the realms of fantasy.
I do however have great admiration for those who go to such great lengths to "get it right".