Engineer Troop Organizations and Operations. FM 5-1 Engineer Troop Units. FM 5-5 Corps of Engineers. Construction and Routes of Communication. FM 5-10 Routes of Communication. FM 5-10 Corps of Engineers. Field Fortifications. FM 5-15 Field Fortifications. FM 5-15 Corps of Engineers. Camouflage Basis Principles. FM 5-20 Camouflage of Individuals and Infantry Weapons. FM 5-20 A Corps de Engineers. Camouflage of Aircraft on the Ground and Airdromes. - USA Vooorschrift Field Manual 5-20E Camouflage of Rear Areas and Fixed Fortifications. FM 5-20G Explosives and Demolitions. FM 5-25 Explosives and Demolitions. FM 5-25