It’s interesting and instructive to compare two bits of film, though one is television, and their approach towards the military and their depictions of military men.
In Them! military characters confront giant ants created by mutation induced from the first atomic explosions. It is simply amazing to see the nuanced actions that are correctly capture in their bearing, their methods, and in their characters. One excellent example is when attacking a nest in the open desert and they are using bazookas as part of their assault. When you load that WWII weapon there is actually a wire lead that goes from the round to a terminal on the firing tube. I know this because I’ve watched training films from the war on how to properly load and fire the weapons. The characters in the movie correctly follow the weapon system’s procedure.
Nearly 50 years later in the iconic television series Buffy The Vampire Slayer the titular character Buffy is working with an elite special forces unit hunting down demons and monster in her hometown. When these best of the best warriors are briefed by a scientist on their next target thy have no questions for her and are silently dedicated to the mission and following orders. Buffy is the outsider and non-conformist with a string of questions and concerns.
This scene entirely misses the boat about what it means to be an elite warrior in U.S. service. These men are smart and those smarts are part of why they are elites. It is simplistic and reductive to think of special forces personnel as silent followers of orders.
The difference between the two productions likely comes down to the fact that in the 1950s nearly everyone knew someone who served and that close association informed the writing and production choices. For Hollywood of the late 90s and early 2000s people will actual services records in the production pipeline are likely to be rare to non-existent. Production companies get their writers and producers and directors from college and industry training with very few coming to film production later in life with the sort of life experiences that could help avoid these sorts of mistakes. It is also unlikely that anyone in the production system knows or knew anyone that served is such a capacity. All of us lead lives that are far too insular. Having veterans among the staff and having veterans review the material to help assure accuracy would be baby steps to getting such characters correct.
And the same is true for characters beyond those with military service. It is true for characters of religion, nationality, or ethnicity.
Representation matters.