Army extension courses. Common subcourse : Duties of trial judge advocate and defense counsel Army extension courses. Common subcourse : Introduction and lesson 1 : basic rules and principles; qualifications of armed forces of belligerents; and, commencement of hostilities Army extension courses. Common subcourse : Sick, wounded and dead (sanitary formations and establishments, sanitary transportation, Red Cross emblem) Field service regulations : operations / prepared under direction of the chief of staff - USA Voorschrift, Field Manual 100-5 field manual Field service regulations : administration / prepared under direction of the chief of staff Transportation corps : railway shop battalion - USA Voorschrift, Field Manual 55-60 field manual 37-mm gun, antitank M3 / War Department field manual U.S. rifle, caliber .30 M1917 (Enfield) / War Department Antiaircraft artillery : organization and tactics - USA Coast Artillery Field Manual, FM 4-105 Antiaircraft artillery : gunnery, fire control, position finding and horizontal fire, case I firing. - USA Coast Artillery Field Manual, FM 4-112 Tactics and technique - USA Field Artillery Field Manual, FM 6-20 Field artillery : tactics and technique of division artillery and higher artillery echelons - USA War Department Field Manual, FM 6-100