Metal workers examine drawings and work orders; determine sequence of operations, materials, tools, equipment, time, and personnel required. They also perform installation, operation, maintenance and repair of metalworking, and welding equipment and material.

Engineer equipment mechanics perform preventive maintenance and make repairs to diesel engines and gasoline and diesel driven construction equipment such as tractors, power shovels, road machinery, air compressors, concrete mixers and other engine driven or towed construction equipment.

Small craft mechanics perform preventive maintenance and make repairs to small craft, including riverine assault craft; metal, fiberglass, and rubber hulled small craft; diesel motors; propeller and hydrojet propulsion systems; and small craft trailers and cradle systems.

This MOS is a special NMOS for the Engineer Equipment Mechanic, MOS 1341. The assault breacher vehicle (ABV) is a full-tracked, engineer vehicle designed for in-stride breaching of minefields and complex obstacles. The joint assault bridge is a full tracked vehicle designed for assault bridging. These vehicles will operate as part of the combined arms task force and be assigned to and employed by Combat Engineers. The ABV/JAB will leverage the known capabilities and logistics train of the M1 Main Battle Tank chassis fitted with Non-Developmental Item (NDI) systems, including a Full-Width Mine Plow FWMP), two MK 155 Linear Demolition Charges (LDC), Lane Marking System (LMS), protective weapon system (ABV), combat dozer blade (ABV/JAB), and an assault bridge (JAB).

Engineer equipment operators operate gasoline or diesel engine powered, self-propelled, skid-mounted, and towed engineer construction equipment including accessories and allied equipment used in earthmoving, grading, excavation, logging, clearing, and landing operations.

Engineer equipment chiefs manage the activities of enlisted personnel performing engineer equipment operation, maintenance, and repair. This MOS will be assigned only by the authority of the CMC (MM).

Engineer assistants perform various duties incidental to construction design, planning, estimating, and management. Personnel assigned this MOS are trained to use optical reading/electronic total station survey instruments to establish the horizontal and vertical alignment/layout for construction projects. In addition, they are trained to use manual/Computer Aided Drafting (CAD) methods of preparing architectural/mechanical/civil drawings, to include computations for bills of material/earthwork volumes.

Combat engineers construct, alter, repair, and maintain buildings and structures; lift and move heavy objects and equipment by setting up, bracing, and utilizing rigging devices and equipment; and perform various duties incidental to the use of demolitions in construction projects and destruction of objects. Personnel assigned this MOS are taught carpentry and other construction skills as well as demolitions, specialized demolitions for urban breaching and land mine.