The Trial of Henry Blake - S2-E8
Visible crew/equipment: After Henry's cleared of all charges, when Margaret drops the crumpled paper and storms out of the room with Frank, we can see chalk marks and a T-mark on the floor where Frank was standing.
The Trial of Henry Blake - S2-E8
Continuity mistake: In the scene of Klinger trying to escape from the 4077 on a hang glider, he secures himself into the control frame, but then when he takes off, he's hanging off the frame's bottom bar. (00:10:40)
The Trial of Henry Blake - S2-E8
Continuity mistake: When Radar walks into the Swamp to sell wingtip shoes to Hawkeye, the dartboard isn't hanging on the door, but in two of Radar's closeups we can see part of the door with the dartboard on it.
The Trial of Henry Blake - S2-E8
Revealing mistake: As Klinger flies on his home made glider it's easy to tell that it's a bad composition shot. Also, nobody moving in the shot of him taking off stopped to notice him.
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