Those Unimog based machines that the U.S. National Guard run are called Seeflu 419s.It stands for small emplacement excavator.There are two versions that I am familiar with .One is a maintainance model with front forks and a crane in the rear.Its aux.hydraulic power ran a Impact wrench I think.The one that I am most familiar with because I was a trainer on had a 3/4yard toothed bucket on the front,and a Case 580style backhoe on the rear, less Extendahoe,with a 24''bucket .It had a hydraulic twin hose with twin quik connects for a Stanley 70# jackhammer and also a chainsaw ,also by Stanley.It also had a hydraulic drill.They had a four speed trans with high and low range button on the shifter,plus twin range lever with reverse,They had some downfalls,as it having a clutch,Inexperienced operators would dig in a bank or pile and beat the clutch up bad.Also the backhoe operated with a throttle button that was prone to fail,as it was in a exposed position.You would have to use the throttle in the cab.As I understand It ,the military is not ordering them any more they are going with a 580 Case backhoe.The Unimog core of the machine was exceptional,though,and they really attract attention wherever they go.