There are a lot of specific jobs in the U.S. Army, from "trigger pullers," to medics, to computer programmers, and lawyers. However, did you know there's a specific job, or MOS (Military Occupational Skill), for "tractor operators? The Horizontal Construction Engineer prepares construction sites, and infantry fighting positions. They operate all the U.S. Army's heavy equipment and dig pretty much anything asked of them. Check out the 2d Cavalry Regiment training at 7th Army Training Command's Gr