Near the end of the film, back at base as he is preparing to ship out, Moss puts a cigarette in his mouth twice between shots.
The Army Recon Team's helmets are fitted with manufactured camouflaged covers. In W.W.II, these were strictly a Marine Corps- issued item.
At the time of the war, the army wasn't fully integrated yet, so an African-American soldier could not serve in a Caucasian brigade.
PVT Moss was an attachment to the unit, and it is not stated what support unit he is from. Support roles were especially open to African American soldiers during WW2, so his assignment to such a unit is likely.
The latent Jim Crow laws and norms are spelled out when MAJ Robinson calls COL Baker to notify him of Moss' race.
In 1943 the Army had officially begun to break down the walls of segregation here and there. The response of COL Baker to dismiss these concerns, whether his true feelings of getting the job done, or policy he was handed down from higher, are plausible if not likely.
In addition, during this phone call the lack of any other suitable specialists is spelled out explicitly.
The latent Jim Crow laws and norms are spelled out when MAJ Robinson calls COL Baker to notify him of Moss' race.
In 1943 the Army had officially begun to break down the walls of segregation here and there. The response of COL Baker to dismiss these concerns, whether his true feelings of getting the job done, or policy he was handed down from higher, are plausible if not likely.
In addition, during this phone call the lack of any other suitable specialists is spelled out explicitly.
For being on a secret mission to an enemy-held island, the group talks a lot - and in their normal voices, makes a lot of other noises, smokes cigarettes day and night, etc. - any of which could give them away to the Japanese.