Visible crew/equipment: When all the recruits hit Gomer Pyle with soaps while he's on the bed at night, the shadow of the camera can be seen on the left side of the screen projected on the recruits while they walk around the bunk bed. (00:29:19)
Visible crew/equipment: When Cowboy, Joker, Rafterman and the other Marines are running across the buildings to get to Animal in the final sniper scene, watch the foreground. Right before they reach Animal, you can see they run by a crouching crew member, in the foreground at the bottom of the screen. (01:38:52)
Chosen answer: A Drill Instructor is always mad at the recruits in order to forge discipline. Private Pyle was the biggest screwup in the unit, thus creating more work for him.
Captain Defenestrator