C4 Demolition Training at Range 108 - Bravo Company, 1st Combat Engineer Battalion, 1st Marine Division Demolition Training at Range 108. Courtesy Video | 1st Marine Division | Date: 06.29.2013. Marines serving with Bravo Company, 1st Combat Engineer Battalion, conduct demolition training at Range 108 here, June 19, 2013. The company's Marines learned about the capabilities of various explosives such as dynamite, TNT, shape charges and C4. The charges are used by engineers to destroy heavily armored vehicles, defensive obstacles and bridges. Available in High Definition. HD video.