I've never seen a Unimog that was optioned up like this... as a Small Emplacement Excavator

 
This 1989 Freightliner Unimog FLU419 is a former US military vehicle that was overhauled in 2010 at the Red River Army Depo

https://bringatrailer.com/listing/1989-freightliner-unimog-flu419-4