Hawkeye poses for Colonel Potter's painting (feet up, drink in hand) yet in the previous episode (5 - 9: The Korean Surgeon) the painting is already on the wall of Potter's Office.
It is obvious by the lighting that when Potter and Hawkeye are leaving camp, they are inside the studio. In the next shot, they are outside.
The jeep Hawkeye and Potter are in when they pull up to the aid station has no ID numbers painted along the side of the hood such as is shown on the MPs jeep at the check point.
As Hawkeye and Potter are leaving in the jeep to go to the aid station, in the rear shot, the passenger, Colonel Potter, has black hair.
When Hawkeye repeatedly fires his pistol in the air, he's holding it very close to Col. Potter's left ear. In reality, this would have caused the colonel great distress, if not serious damage to his eardrum and his hearing.
When Potter and Pierce are playing hot potato with Pierce's sidearm, it can clearly be seen to be a Spanish-made Star automatic (as the visible extractor and lack of a grip safety show). Any US officer of the period would, with rare exceptions, have been issued a genuine 1911A1 .45 ACP. It was common practice in TV at the time to use the cheaper Stars to fill in for 1911s, as they usually chambered the 9 millimeter Luger cartridge, for which blanks were plentiful.
When Colonel Potter and Hawkeye survive the attack, they are discovered by a U.S. infantry squad. The squad leader, a staff sergeant, addresses Hawkeye as "captain," despite Hawkeye not identifying himself as a captain or wearing any rank insignia.
Hawkeye states that he and Colonel Potter fired the same number of rounds. However, Potter fired 7 and Hawkeye fired 5.
Col. Potter repeatedly refers to a sidearm as a "gun." A high-ranking officer who has spent more than 30 years in the service, Col. Potter should know that a soldier never refers to a sidearm as a "gun"; he should refer to it as a "pistol" or a "weapon."