I was a MADM security officer when we took the is stuff seriously as part of our planning in Germany. Each maneuver battalion/squadron who had targets in their defensive area had to designate a platoon to protect the engineer unit moving up to employ the weapon. Normally, these were used in pre-chambers at choke points and the massive autobahn bridges where it would take days to emplace conventional explosives meaning it would be a day late and a dollar short before the advancing Soviets would be bearing down on the target. As the security officer, I was the 2d man in the two man control and was school trained in the codes and the operation of the weapon. We were familiar with the SADM, but since that wasn't our lane we didn't know the operation of the thing.
What's interesting is it busts the myth of the "suit case" nuke popular with a few dummy congressmen and a lot of TV shows. Lugging around a 150lb. container is not as portable as scriptwriters think. IN fact, when jumping in it would likely be in two parts two lesson the load on the soldiers.
Also, Recusant is right. The Russians never did phase out their tactical nukes which was stipulated by treaty. We, being the good guys did phase out our weapons. Must be nice to just ignore agreements like that. But then again, that's how the Russians roll.