Final answer:
MRC 2 does not seem to be a recognized classification for a soldier's deficiency. The context provided about Colonel Elizabeth Smellie's medals doesn't relate to a soldier classification system. Without proper context, it's unclear what MRC 2 refers to in military terms.
Step-by-step explanation:
The term MRC 2 does not appear to relate to a deficiency in soldiers but rather seems to be a misinterpretation of military classifications or medal citations. The given reference to Colonel Elizabeth Smellie and her awarded medals, including the Royal Red Cross Class 2 (AARC), does not provide context for a classification of MRC 2 related to soldiers. Typically, military personnel classifications refer to their status, qualifications, or medical readiness, but without the correct context or abbreviation, it's challenging to determine what MRC 2 specifically refers to. In the context of military awards, the Royal Red Cross Class 2 is an honor bestowed for exceptional services in military nursing.