 Back at Phu Bai, Cheatham was reviewing Marine urban fighting doctrine which recommended staying off the streets and moving forward by blasting through walls and buildings.He proceeded to gather the necessary equipment including M20 Bazookas, M40 106 mm recoilless rifles mounted on M274 Mules, C-4 explosive, flamethrowers, tear gas and gas masks.This equipment was loaded onto a convoy which arrived at the MACV Compound at 13