 Complete the following phrase:  Coolings primary Military Operational Specialty MOS was as an infantry officer 0302 until his promotion to Colonel, when he was assigned an 8041, Colonel, Ground MOS. He received his 8003, General Officer MOS upon being promoted to his current rank. His first assignment as an infantry officer was with Second Battalion, Fourth Marines where he commanded rifle, weapons, and anti-armor platoons. Subsequently, he has commanded infantry and light armored reconnaissance units to the battalion level as well as the Marine Corps Mountain Warfare Training Center in Bridgeport, CA. He commanded Third Battalion, Third Marines during combat deployments to both Afghanistan during Operation Enduring Freedom and Iraq during 