Continuity mistake: During the scene where the Joker moves into the building to kill the sniper, the sniper sees him and starts shooting at the pillar he is behind. During this shot, large chunks of the pillar fall away, but in the next shot, when the sniper gets shot, the pillar is intact.
Continuity mistake: The shape of the beam of light coming from Joker's torch, after he enters the bathroom where Pyle kills himself, is different from the shape of the beam before he enters.






Suggested correction: They sure did punch you. Back in '69, I got punched just like that, and I wasn't the only one to get hit.
That does not address the point - Lee Ermey himself regards Hartman as an inept drill instructor. If he did assault cadets, it was strictly against the rules, and how could he not see that Pyle was having a breakdown?
To add, R. Lee Ermey himself was a DI, so he would know a Marine's code of conduct.