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Roger that Adler, but some of the above SO units specialized themselves at both land, sea air operations, the Brandenburgers did and the Commandos did as-well.
Technically the Elite FallschirmJägers the GebirgsJägers were also SO units, highly trained specialized in their field, having to undergo considerably harder training than the already rigerous training of the enlisted Wehrmacht soldiers, whose training was already 3 times as long as the average US British soldier. However to keep the list short I didn't include these, but also because I'd have to add the equally specialized OSS, SAS, SBS etc etc.. Ofcourse the same can be said about the Rangers, Gurkhas Z special units.
Come to think about, if you can, you may add all these Adler - I did make it possible to choose more than one.
IIRC, the SAS came out of the Long Range Desert Group, so I'm not sure that the accolades accorded for the SAS shouldn't be awarded to LRDG, at least during the early part of the war. That still leaves too many choices though, there were a heckuva lot of specialized units during that time period. I'm not even sure that 617 Squadron shouldn't be considered, at least for the Dams Raid. Too many choices..........