Continuity mistake: As Radar turns from Henry's desk, the tote board he has under his arm disappears as he approaches the file cabinet.
Continuity mistake: As Frank and Henry sit at Henry's desk, and Henry is holding his doll, the cigar he has goes from his mouth to hand and back again.
Factual error: General Clayton is wearing ribbons on his regular fatigues. This is incorrect as the ribbons would only be displayed on the dress uniforms. Only the officer's rank would be on the fatigues.
Continuity mistake: As Hawkeye goes to leave the Swamp, the club he's holding goes from the top of the grip an inch or so above his fist, to the top in his palm.
Continuity mistake: Frank comes over to talk to Hawkeye and Trapper. His arms go from down by his sides to hands on hips between angles.
Continuity mistake: When Blake is talking to Burns, he sits and plays with his doll, which is facing toward the office door. After the angle change, the doll is facing Henry.
Continuity mistake: When Hawkeye passes by Frank on his way to Lt. Johnson's, he's holding a bottle of gin up near his waist. In the next shot, his arm is resting down by his side. (00:08:30)
Continuity mistake: The psychiatrist is called Milton Freedman in this episode and Sydney Freedman in all other episodes in which he appears (always being played by the same actor - it is the same psychiatrist).
Other mistake: Radar says the weekly report is for the 17th to the 22nd inclusive. A 6 day week in the middle of a war?
Continuity mistake: When Hawkeye and Lt. Johnson are sharing Hawkeye's bottle of "wine" there's a closeup of Johnson's hand holding the glass, and in the closeup that hand has short nails, whereas in all other shots Johnson has long nails.
Visible crew/equipment: When Klinger walks into Henry's office while Margaret and Frank are there, we can see the chalk T-mark on the floor behind Margaret where Radar was standing moments ago.
Visible crew/equipment: When Dr. Freedman's in Henry's office before Klinger walks in, just as Henry says, "You're the doctor," the shadow of the moving boom mic can be seen at the top left side of the screen.
Continuity mistake: When Trapper and Hawkeye are sitting outside the Swamp, Hawkeye pours the martinis from the tall glass beaker, and in the shots facing Hawkeye there are quite a few large ice cubes in the beaker, but in the shots facing Trapper there aren't as many ice cubes floating in the beaker.
Factual error: Radar claims in his report that Father Mulchahy tried to calm the prisoner by saying "bang zhao", thinking it means "peace and friendship" when it really means "your daughter's pregnancy brings much joy to our village." There is, unsurprisingly, not even a remotely similar word in Chinese that means either of those things.
Other mistake: The Chinese patient cut the strap of Klinger's red gown, but Radar says Klinger requests a replacement brassier. Later Klinger's red gown shows no damage, although he could have retied the strap.
Continuity mistake: The amount of alcohol in the bottle Hawkeye holds in the Swamp goes from full to half empty and back between cuts.
For the Good of the Outfit - S2-E4
Continuity mistake: Henry pops out the golf ball he is washing into the towel. After he finishes talking to Hawkeye, he resumes washing. However, no ball is missing from the dirty pile. (00:02:45)
For the Good of the Outfit - S2-E4
Revealing mistake: Frank is shaving; when he bends down to pick up the envelope containing shrapnel fragments, the foam on his face and ear suddenly all dries up. The shot must have needed a lot of takes. (00:07:20)
For the Good of the Outfit - S2-E4
Factual error: During Henry Blake's command, a model of a Bell UH-1 'Huey' can be seen hanging from the ceiling of the commander's office in several shots. In fact, the Huey's first flight was only in 1956.
For the Good of the Outfit - S2-E4
Continuity mistake: While Radar and Hawkeye are in the mess tent, after Hawkeye cracks a joke about how the cook sculpts grease into the shape of lamp chops, between shots facing Radar and the shots facing Hawkeye we see Radar either holding bread in his right hand or a fork.
Answer: Even an Army field hospital would have SOME weapons for self-defense if the enemy attacked. What's meant is that it's not a combat outfit, and therefore wouldn't have enough weapons to actually attack anyone. (It's also mentioned a few times that the Officer of the Watch is supposed to carry a pistol at all times, but Hawkeye refuses to do it when he's in charge and Colonels Blake and Potter don't enforce the rule).
Captain Defenestrator