The message of dehumanization of soldiers would have been more effective if the characters didn't feel mostly emotionless from the start.Even the protagonist was flat.Who are these men?Dehumanization and the consequences of killing are given themes in a war movie.I expected Kubrick to present those themes in a more distinctive way.This film feels kind of hollow but it has its good moments, especially in the 1st part.
3-4. I think the model-free nature of the thing is what struck me most about the nature of this movie. That it folds in on itself and becomes kind of a meta mockumentary about the Vietnam War is something I wasn't really expecting. The meaning of the thing didn't especially resonate with me, partly because I've seen a lot of the same points made elsewhere, but it's good for what it is.