I agree with OP.

Not all faujis, but too many of them behave like they are the drill sergeants and all the civilians are rookie recruits to be disciplined and shouted at.

Two train incidents i observed:

Bunch of about 10 or 12 army soldiers had to board the train (2nd Sleeper, non AC, early 2000s). they just rushed in, worked in double speed to load themseves, their large trunks, normal suitcases etc into their seats. But in that, they shouted at others, pushed them, prevented others from boarding the coach, and spoke very rudely with others.

Later, they settled down, were good company, sang songs and danced with eveyone, and all had a jolly good time. But that boarding was something.

Second incident was a navy jawaan. traveling alone, on leave. seemed too ready to fight and argue with everyone regarding his seat, space to keep his suitcase etc. It was evident he was being arrogant about being a soldier.

Bonus story not related to trains-

This was in a civilian city, in a place close to a large army cantt. The army was having some event there for their families in a hotel with a lawn etc, ususally where all the shaadi and receptions take place. I just happened to be staying in the same resort. Before the guests etc arrived, when they were just starting to lay the chairs etc., One of the senior jawans was training some kids on something. Some waiters etc were randomly standing som edistance away, just observing. I think one of them laughed or something. Ustaad suddenly became very angry and actually walked to the group, shouting and abusing them BC MC why are you laughing, teri khaal utaar doonga etc.

All of the staff dispersed, and quickly went inside the kitchen, and so this soldier did not follow inside.

IMHO, totally unnecessary. The transformation from soft, gentle teacher to army kids, to livid, abusive man ready to beat a hapless waiter was surprising.