Thanks, Ken. There's a lot that I never learned about infantry tactics. It was "Fire an M16A1"; "Fire an M60 Machine Gun"; and "Emplace a Claymore Mine" in MOS 13B One Station Unit Training at Fort Sill in 1977. Branch-immaterial OCS at Fort Benning the same year went into it in a little more depth, but not much. I always thought terrain appreciation for small unit ops was neglected, as in "put your perimeter here, not there."