The US Rangers were trained by the Commandos when they first formed in WW2, so you could say a RM Cdo unit or a Para Battalion would be the rough equivilent.

Although it has to be said that practically any British infantry unit would give them such a run for their money that it would have them squeezing queefs.

Wie fast immer bei mir in letzter Zeit geht es um das Militärische. Nun habe ich aber einen Gehirnfurz erlittern und komme einfach nicht darauf, wie ich "give them a run for their money" treffend übersetzen soll/könnte. Hat jemand eine zündende Idee?