Field Army Support Command. FM 54-3 Field Artillery. Tactics and Technique. FM 6-20 Field Artillery. Tactics and Techniques. FM 6-20 Field Artillery. Firing. FM 6-40 4.2 Inch Mortar M30. FM 6-50 Field Artillery. Battalion Honest John. FM 6-61 155 mm. Gun M2 on Motor Carriage M40 and 8 Inch Howitzer M2 on Motor Carriage M43. FM 6-87 Adjustment of Artillery Fire by the Combat Soldier. FM 6-135 Rifle Company Infantry Regiment. FM 7-10 Heavy Weapons Company Infantry Regiment. FM 7-15 Communication in the Infantry Division. FM 7-24 Headquarters Company Infantry Regiment. FM 7-25.