Otto Carius, one of the top tank aces was leading one of the 2 Heavy Tank Destroyer Battalions, the 512th equipped with the Jagdtigers so they were indeed arguably "Elite" in that regard at least
I said generally, not always.
Here's a lazy wikipedia quote:
Insufficient training of vehicle crews and their poor morale during the last stage of the war were the biggest problems for Jagdtiger crewmen under Carius's command. At the Ruhr Pocket, two Jagdtiger commanders failed to attack an American armored column about 1.5 km (1 mile) away in broad daylight for fear of attracting an Allied air attack, even though the Jagdtigers were well-camouflaged.[14]
The source being his own book.
But anyway, let's get back to OKW.