Staff Sergeant Carrington says that Private Shuler will be facing a court martial, and worse, for being AWOL (Absent Without Leave). AWOL is a term used by the U.S. Air Force, Army and Space Force; the U.S. Coast Guard, Marine Corps and Navy uses the term UA (Unauthorized Absence). A Marine would never say that a fellow Marine is AWOL, they would always use the term UA.
Harmon Rabb being referred to as Lieutenant Commander and wearing the rank insignia of a Lieutenant Commander is not a continuity error as is sometimes claimed. This episode should have been aired after "Defensive Action" where Rabb was promoted but was aired early due to the originally scheduled episode having parallels with real world news.
Throughout the series, junior officers walk to the right of a senior officer. Military custom dictates that you should always walk or sit to the left of your seniors. For centuries men fought with swords, and because most men are right-handed, the heaviest fighting occurred on the right. The shield was on the left arm, and the left side became defensive. Men and units who preferred to carry the battle to the enemy, and who were proud of their fighting ability, considered the right of a battle line to a post of honor. Therefore, when an officer walks or sits on your right, he is symbolically filling the post of honor.
Some of Whitley's words, when in the mud pit, do not match the movement of her mouth.